Home / 117,768.52-162,545.68-72,446.58

Finding the Fourth Proportional to 117,768.52, 162,545.68 and 72,446.58

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Solution

The fourth proportional to 117,768.52, 162,545.68 and 72,446.58 is: 99,991.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,768.52 : 162,545.68 = 72,446.58 : x
  2. Step 2: Convert to fraction form
    117,768.52/162,545.68 = 72,446.58/x
  3. Step 3: Cross multiply
    117,768.52x = 162,545.68 × 72,446.58
  4. Step 4: Simplify right side
    117,768.52x = 11,775,878,609.77
  5. Step 5: Solve for x
    x = 11,775,878,609.77/117,768.52
  6. Step 6: Final answer
    x = 99,991.73

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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.