Home / 119,178.49-178,601.61-89,561.70

Finding the Fourth Proportional to 119,178.49, 178,601.61 and 89,561.70

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Solution

The fourth proportional to 119,178.49, 178,601.61 and 89,561.70 is: 134,217.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,178.49 : 178,601.61 = 89,561.70 : x
  2. Step 2: Convert to fraction form
    119,178.49/178,601.61 = 89,561.70/x
  3. Step 3: Cross multiply
    119,178.49x = 178,601.61 × 89,561.70
  4. Step 4: Simplify right side
    119,178.49x = 15,995,863,646.41
  5. Step 5: Solve for x
    x = 15,995,863,646.41/119,178.49
  6. Step 6: Final answer
    x = 134,217.71

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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.