Home / 105,069,138.60-157,603,707.90-99,116,999.40

Finding the Fourth Proportional to 105,069,138.60, 157,603,707.90 and 99,116,999.40

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Solution

The fourth proportional to 105,069,138.60, 157,603,707.90 and 99,116,999.40 is: 148,675,499.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,069,138.60 : 157,603,707.90 = 99,116,999.40 : x
  2. Step 2: Convert to fraction form
    105,069,138.60/157,603,707.90 = 99,116,999.40/x
  3. Step 3: Cross multiply
    105,069,138.60x = 157,603,707.90 × 99,116,999.40
  4. Step 4: Simplify right side
    105,069,138.60x = 15,621,206,621,362,076
  5. Step 5: Solve for x
    x = 15,621,206,621,362,076/105,069,138.60
  6. Step 6: Final answer
    x = 148,675,499.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.