Home / 130,155.20-195,028.60-77,535.92

Finding the Fourth Proportional to 130,155.20, 195,028.60 and 77,535.92

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Solution

The fourth proportional to 130,155.20, 195,028.60 and 77,535.92 is: 116,182.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,155.20 : 195,028.60 = 77,535.92 : x
  2. Step 2: Convert to fraction form
    130,155.20/195,028.60 = 77,535.92/x
  3. Step 3: Cross multiply
    130,155.20x = 195,028.60 × 77,535.92
  4. Step 4: Simplify right side
    130,155.20x = 15,121,721,927.31
  5. Step 5: Solve for x
    x = 15,121,721,927.31/130,155.20
  6. Step 6: Final answer
    x = 116,182.23

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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.