Home / 125,343.45-172,989.27-71,616.15

Finding the Fourth Proportional to 125,343.45, 172,989.27 and 71,616.15

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Solution

The fourth proportional to 125,343.45, 172,989.27 and 71,616.15 is: 98,839.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,343.45 : 172,989.27 = 71,616.15 : x
  2. Step 2: Convert to fraction form
    125,343.45/172,989.27 = 71,616.15/x
  3. Step 3: Cross multiply
    125,343.45x = 172,989.27 × 71,616.15
  4. Step 4: Simplify right side
    125,343.45x = 12,388,825,508.71
  5. Step 5: Solve for x
    x = 12,388,825,508.71/125,343.45
  6. Step 6: Final answer
    x = 98,839.03

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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.