Home / 112,738-155,572.20-62,433.04

Finding the Fourth Proportional to 112,738, 155,572.20 and 62,433.04

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Solution

The fourth proportional to 112,738, 155,572.20 and 62,433.04 is: 86,154.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,738 : 155,572.20 = 62,433.04 : x
  2. Step 2: Convert to fraction form
    112,738/155,572.20 = 62,433.04/x
  3. Step 3: Cross multiply
    112,738x = 155,572.20 × 62,433.04
  4. Step 4: Simplify right side
    112,738x = 9,712,845,385.49
  5. Step 5: Solve for x
    x = 9,712,845,385.49/112,738
  6. Step 6: Final answer
    x = 86,154.14

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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.