Home / 102,436.29-153,648.96-31,358.97

Finding the Fourth Proportional to 102,436.29, 153,648.96 and 31,358.97

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Solution

The fourth proportional to 102,436.29, 153,648.96 and 31,358.97 is: 47,036.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,436.29 : 153,648.96 = 31,358.97 : x
  2. Step 2: Convert to fraction form
    102,436.29/153,648.96 = 31,358.97/x
  3. Step 3: Cross multiply
    102,436.29x = 153,648.96 × 31,358.97
  4. Step 4: Simplify right side
    102,436.29x = 4,818,273,127.17
  5. Step 5: Solve for x
    x = 4,818,273,127.17/102,436.29
  6. Step 6: Final answer
    x = 47,036.78

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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.