Home / 112,691.75-155,519.48-62,390.75

Finding the Fourth Proportional to 112,691.75, 155,519.48 and 62,390.75

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Solution

The fourth proportional to 112,691.75, 155,519.48 and 62,390.75 is: 86,101.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,691.75 : 155,519.48 = 62,390.75 : x
  2. Step 2: Convert to fraction form
    112,691.75/155,519.48 = 62,390.75/x
  3. Step 3: Cross multiply
    112,691.75x = 155,519.48 × 62,390.75
  4. Step 4: Simplify right side
    112,691.75x = 9,702,976,996.81
  5. Step 5: Solve for x
    x = 9,702,976,996.81/112,691.75
  6. Step 6: Final answer
    x = 86,101.93

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1.5x scale

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.