Home / 89,382.38-134,071.95-75,432.02

Finding the Fourth Proportional to 89,382.38, 134,071.95 and 75,432.02

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Solution

The fourth proportional to 89,382.38, 134,071.95 and 75,432.02 is: 113,146.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,382.38 : 134,071.95 = 75,432.02 : x
  2. Step 2: Convert to fraction form
    89,382.38/134,071.95 = 75,432.02/x
  3. Step 3: Cross multiply
    89,382.38x = 134,071.95 × 75,432.02
  4. Step 4: Simplify right side
    89,382.38x = 10,113,318,013.84
  5. Step 5: Solve for x
    x = 10,113,318,013.84/89,382.38
  6. Step 6: Final answer
    x = 113,146.66

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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.