Home / 218,712.23-328,068.34-125,151.83

Finding the Fourth Proportional to 218,712.23, 328,068.34 and 125,151.83

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Solution

The fourth proportional to 218,712.23, 328,068.34 and 125,151.83 is: 187,727.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,712.23 : 328,068.34 = 125,151.83 : x
  2. Step 2: Convert to fraction form
    218,712.23/328,068.34 = 125,151.83/x
  3. Step 3: Cross multiply
    218,712.23x = 328,068.34 × 125,151.83
  4. Step 4: Simplify right side
    218,712.23x = 41,058,351,475.72
  5. Step 5: Solve for x
    x = 41,058,351,475.72/218,712.23
  6. Step 6: Final answer
    x = 187,727.74

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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.