Home / 99,929.58-137,902.95-55,217.58

Finding the Fourth Proportional to 99,929.58, 137,902.95 and 55,217.58

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Solution

The fourth proportional to 99,929.58, 137,902.95 and 55,217.58 is: 76,200.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,929.58 : 137,902.95 = 55,217.58 : x
  2. Step 2: Convert to fraction form
    99,929.58/137,902.95 = 55,217.58/x
  3. Step 3: Cross multiply
    99,929.58x = 137,902.95 × 55,217.58
  4. Step 4: Simplify right side
    99,929.58x = 7,614,667,173.86
  5. Step 5: Solve for x
    x = 7,614,667,173.86/99,929.58
  6. Step 6: Final answer
    x = 76,200.33

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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.