Home / 120,088.17-180,132.26-31,340.91

Finding the Fourth Proportional to 120,088.17, 180,132.26 and 31,340.91

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Solution

The fourth proportional to 120,088.17, 180,132.26 and 31,340.91 is: 47,011.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,088.17 : 180,132.26 = 31,340.91 : x
  2. Step 2: Convert to fraction form
    120,088.17/180,132.26 = 31,340.91/x
  3. Step 3: Cross multiply
    120,088.17x = 180,132.26 × 31,340.91
  4. Step 4: Simplify right side
    120,088.17x = 5,645,508,074.34
  5. Step 5: Solve for x
    x = 5,645,508,074.34/120,088.17
  6. Step 6: Final answer
    x = 47,011.36

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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.