Home / 103,052.91-155,281.38-84,743.11

Finding the Fourth Proportional to 103,052.91, 155,281.38 and 84,743.11

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Solution

The fourth proportional to 103,052.91, 155,281.38 and 84,743.11 is: 127,691.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,052.91 : 155,281.38 = 84,743.11 : x
  2. Step 2: Convert to fraction form
    103,052.91/155,281.38 = 84,743.11/x
  3. Step 3: Cross multiply
    103,052.91x = 155,281.38 × 84,743.11
  4. Step 4: Simplify right side
    103,052.91x = 13,159,027,180.95
  5. Step 5: Solve for x
    x = 13,159,027,180.95/103,052.91
  6. Step 6: Final answer
    x = 127,691.95

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.