Home / 112,318.74-168,523.97-72,358.61

Finding the Fourth Proportional to 112,318.74, 168,523.97 and 72,358.61

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Solution

The fourth proportional to 112,318.74, 168,523.97 and 72,358.61 is: 108,567.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,318.74 : 168,523.97 = 72,358.61 : x
  2. Step 2: Convert to fraction form
    112,318.74/168,523.97 = 72,358.61/x
  3. Step 3: Cross multiply
    112,318.74x = 168,523.97 × 72,358.61
  4. Step 4: Simplify right side
    112,318.74x = 12,194,159,016.47
  5. Step 5: Solve for x
    x = 12,194,159,016.47/112,318.74
  6. Step 6: Final answer
    x = 108,567.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.