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Finding the Fourth Proportional to 98,343.98, 147,516.15 and 42,147.65

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Solution

The fourth proportional to 98,343.98, 147,516.15 and 42,147.65 is: 63,221.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,343.98 : 147,516.15 = 42,147.65 : x
  2. Step 2: Convert to fraction form
    98,343.98/147,516.15 = 42,147.65/x
  3. Step 3: Cross multiply
    98,343.98x = 147,516.15 × 42,147.65
  4. Step 4: Simplify right side
    98,343.98x = 6,217,458,321.97
  5. Step 5: Solve for x
    x = 6,217,458,321.97/98,343.98
  6. Step 6: Final answer
    x = 63,221.55

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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.