Home / 99,929.83-137,903.30-55,217.83

Finding the Fourth Proportional to 99,929.83, 137,903.30 and 55,217.83

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Solution

The fourth proportional to 99,929.83, 137,903.30 and 55,217.83 is: 76,200.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,929.83 : 137,903.30 = 55,217.83 : x
  2. Step 2: Convert to fraction form
    99,929.83/137,903.30 = 55,217.83/x
  3. Step 3: Cross multiply
    99,929.83x = 137,903.30 × 55,217.83
  4. Step 4: Simplify right side
    99,929.83x = 7,614,720,975.84
  5. Step 5: Solve for x
    x = 7,614,720,975.84/99,929.83
  6. Step 6: Final answer
    x = 76,200.68

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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.