Home / 132,238.08-198,331.20-38,718.72

Finding the Fourth Proportional to 132,238.08, 198,331.20 and 38,718.72

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Solution

The fourth proportional to 132,238.08, 198,331.20 and 38,718.72 is: 58,070.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,238.08 : 198,331.20 = 38,718.72 : x
  2. Step 2: Convert to fraction form
    132,238.08/198,331.20 = 38,718.72/x
  3. Step 3: Cross multiply
    132,238.08x = 198,331.20 × 38,718.72
  4. Step 4: Simplify right side
    132,238.08x = 7,679,130,200.06
  5. Step 5: Solve for x
    x = 7,679,130,200.06/132,238.08
  6. Step 6: Final answer
    x = 58,070.49

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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.