Home / 99,508.03-137,319.10-54,186.55

Finding the Fourth Proportional to 99,508.03, 137,319.10 and 54,186.55

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Solution

The fourth proportional to 99,508.03, 137,319.10 and 54,186.55 is: 74,776.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,508.03 : 137,319.10 = 54,186.55 : x
  2. Step 2: Convert to fraction form
    99,508.03/137,319.10 = 54,186.55/x
  3. Step 3: Cross multiply
    99,508.03x = 137,319.10 × 54,186.55
  4. Step 4: Simplify right side
    99,508.03x = 7,440,847,591.51
  5. Step 5: Solve for x
    x = 7,440,847,591.51/99,508.03
  6. Step 6: Final answer
    x = 74,776.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.