Home / 105,014,605.40-157,521,908.10-90,858,829.40

Finding the Fourth Proportional to 105,014,605.40, 157,521,908.10 and 90,858,829.40

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Solution

The fourth proportional to 105,014,605.40, 157,521,908.10 and 90,858,829.40 is: 136,288,244.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,014,605.40 : 157,521,908.10 = 90,858,829.40 : x
  2. Step 2: Convert to fraction form
    105,014,605.40/157,521,908.10 = 90,858,829.40/x
  3. Step 3: Cross multiply
    105,014,605.40x = 157,521,908.10 × 90,858,829.40
  4. Step 4: Simplify right side
    105,014,605.40x = 14,312,256,174,820,378
  5. Step 5: Solve for x
    x = 14,312,256,174,820,378/105,014,605.40
  6. Step 6: Final answer
    x = 136,288,244.10

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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.