Home / 112,964.52-155,909.70-62,679.72

Finding the Fourth Proportional to 112,964.52, 155,909.70 and 62,679.72

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Solution

The fourth proportional to 112,964.52, 155,909.70 and 62,679.72 is: 86,508.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,964.52 : 155,909.70 = 62,679.72 : x
  2. Step 2: Convert to fraction form
    112,964.52/155,909.70 = 62,679.72/x
  3. Step 3: Cross multiply
    112,964.52x = 155,909.70 × 62,679.72
  4. Step 4: Simplify right side
    112,964.52x = 9,772,376,341.28
  5. Step 5: Solve for x
    x = 9,772,376,341.28/112,964.52
  6. Step 6: Final answer
    x = 86,508.37

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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.