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Finding the Fourth Proportional to 130,199.87, 179,603.48 and 75,745.92

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Solution

The fourth proportional to 130,199.87, 179,603.48 and 75,745.92 is: 104,487.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,199.87 : 179,603.48 = 75,745.92 : x
  2. Step 2: Convert to fraction form
    130,199.87/179,603.48 = 75,745.92/x
  3. Step 3: Cross multiply
    130,199.87x = 179,603.48 × 75,745.92
  4. Step 4: Simplify right side
    130,199.87x = 13,604,230,449.07
  5. Step 5: Solve for x
    x = 13,604,230,449.07/130,199.87
  6. Step 6: Final answer
    x = 104,487.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.