Home / 130,746.91-180,425.05-72,600.03

Finding the Fourth Proportional to 130,746.91, 180,425.05 and 72,600.03

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Solution

The fourth proportional to 130,746.91, 180,425.05 and 72,600.03 is: 100,184.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,746.91 : 180,425.05 = 72,600.03 : x
  2. Step 2: Convert to fraction form
    130,746.91/180,425.05 = 72,600.03/x
  3. Step 3: Cross multiply
    130,746.91x = 180,425.05 × 72,600.03
  4. Step 4: Simplify right side
    130,746.91x = 13,098,864,042.75
  5. Step 5: Solve for x
    x = 13,098,864,042.75/130,746.91
  6. Step 6: Final answer
    x = 100,184.88

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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.