Home / 130,535.28-180,145.80-73,957.68

Finding the Fourth Proportional to 130,535.28, 180,145.80 and 73,957.68

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Solution

The fourth proportional to 130,535.28, 180,145.80 and 73,957.68 is: 102,065.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,535.28 : 180,145.80 = 73,957.68 : x
  2. Step 2: Convert to fraction form
    130,535.28/180,145.80 = 73,957.68/x
  3. Step 3: Cross multiply
    130,535.28x = 180,145.80 × 73,957.68
  4. Step 4: Simplify right side
    130,535.28x = 13,323,165,429.74
  5. Step 5: Solve for x
    x = 13,323,165,429.74/130,535.28
  6. Step 6: Final answer
    x = 102,065.63

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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.