Home / 119,229.80-178,678.36-89,612.96

Finding the Fourth Proportional to 119,229.80, 178,678.36 and 89,612.96

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Solution

The fourth proportional to 119,229.80, 178,678.36 and 89,612.96 is: 134,294.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,229.80 : 178,678.36 = 89,612.96 : x
  2. Step 2: Convert to fraction form
    119,229.80/178,678.36 = 89,612.96/x
  3. Step 3: Cross multiply
    119,229.80x = 178,678.36 × 89,612.96
  4. Step 4: Simplify right side
    119,229.80x = 16,011,896,727.55
  5. Step 5: Solve for x
    x = 16,011,896,727.55/119,229.80
  6. Step 6: Final answer
    x = 134,294.42

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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.