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Finding the Fourth Proportional to 98,501.92, 147,540.65 and 66,737.72

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Solution

The fourth proportional to 98,501.92, 147,540.65 and 66,737.72 is: 99,962.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,501.92 : 147,540.65 = 66,737.72 : x
  2. Step 2: Convert to fraction form
    98,501.92/147,540.65 = 66,737.72/x
  3. Step 3: Cross multiply
    98,501.92x = 147,540.65 × 66,737.72
  4. Step 4: Simplify right side
    98,501.92x = 9,846,526,588.32
  5. Step 5: Solve for x
    x = 9,846,526,588.32/98,501.92
  6. Step 6: Final answer
    x = 99,962.79

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1.5x scale

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.