Home / 147,387.60-203,234.27-99,557.91

Finding the Fourth Proportional to 147,387.60, 203,234.27 and 99,557.91

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Solution

The fourth proportional to 147,387.60, 203,234.27 and 99,557.91 is: 137,281.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,387.60 : 203,234.27 = 99,557.91 : x
  2. Step 2: Convert to fraction form
    147,387.60/203,234.27 = 99,557.91/x
  3. Step 3: Cross multiply
    147,387.60x = 203,234.27 × 99,557.91
  4. Step 4: Simplify right side
    147,387.60x = 20,233,578,663.79
  5. Step 5: Solve for x
    x = 20,233,578,663.79/147,387.60
  6. Step 6: Final answer
    x = 137,281.42

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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.