Home / 178,715.91-268,167.44-72,126.39

Finding the Fourth Proportional to 178,715.91, 268,167.44 and 72,126.39

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Solution

The fourth proportional to 178,715.91, 268,167.44 and 72,126.39 is: 108,227.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,715.91 : 268,167.44 = 72,126.39 : x
  2. Step 2: Convert to fraction form
    178,715.91/268,167.44 = 72,126.39/x
  3. Step 3: Cross multiply
    178,715.91x = 268,167.44 × 72,126.39
  4. Step 4: Simplify right side
    178,715.91x = 19,341,949,362.74
  5. Step 5: Solve for x
    x = 19,341,949,362.74/178,715.91
  6. Step 6: Final answer
    x = 108,227.35

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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.