Home / 99,102.58-136,761.92-53,780.55

Finding the Fourth Proportional to 99,102.58, 136,761.92 and 53,780.55

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Solution

The fourth proportional to 99,102.58, 136,761.92 and 53,780.55 is: 74,217.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,102.58 : 136,761.92 = 53,780.55 : x
  2. Step 2: Convert to fraction form
    99,102.58/136,761.92 = 53,780.55/x
  3. Step 3: Cross multiply
    99,102.58x = 136,761.92 × 53,780.55
  4. Step 4: Simplify right side
    99,102.58x = 7,355,130,494.90
  5. Step 5: Solve for x
    x = 7,355,130,494.90/99,102.58
  6. Step 6: Final answer
    x = 74,217.35

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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.