Home / 218,712.10-328,068.15-125,151.70

Finding the Fourth Proportional to 218,712.10, 328,068.15 and 125,151.70

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Solution

The fourth proportional to 218,712.10, 328,068.15 and 125,151.70 is: 187,727.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,712.10 : 328,068.15 = 125,151.70 : x
  2. Step 2: Convert to fraction form
    218,712.10/328,068.15 = 125,151.70/x
  3. Step 3: Cross multiply
    218,712.10x = 328,068.15 × 125,151.70
  4. Step 4: Simplify right side
    218,712.10x = 41,058,286,688.36
  5. Step 5: Solve for x
    x = 41,058,286,688.36/218,712.10
  6. Step 6: Final answer
    x = 187,727.55

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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.