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Finding the Fourth Proportional to 99,126.69, 148,837.65 and 40,077.69

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Solution

The fourth proportional to 99,126.69, 148,837.65 and 40,077.69 is: 60,176.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,126.69 : 148,837.65 = 40,077.69 : x
  2. Step 2: Convert to fraction form
    99,126.69/148,837.65 = 40,077.69/x
  3. Step 3: Cross multiply
    99,126.69x = 148,837.65 × 40,077.69
  4. Step 4: Simplify right side
    99,126.69x = 5,965,068,714.03
  5. Step 5: Solve for x
    x = 5,965,068,714.03/99,126.69
  6. Step 6: Final answer
    x = 60,176.21

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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.