Home / 113,707.38-156,916.80-62,721.90

Finding the Fourth Proportional to 113,707.38, 156,916.80 and 62,721.90

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Solution

The fourth proportional to 113,707.38, 156,916.80 and 62,721.90 is: 86,556.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,707.38 : 156,916.80 = 62,721.90 : x
  2. Step 2: Convert to fraction form
    113,707.38/156,916.80 = 62,721.90/x
  3. Step 3: Cross multiply
    113,707.38x = 156,916.80 × 62,721.90
  4. Step 4: Simplify right side
    113,707.38x = 9,842,119,837.92
  5. Step 5: Solve for x
    x = 9,842,119,837.92/113,707.38
  6. Step 6: Final answer
    x = 86,556.56

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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.