Home / 124,479.10-171,781.25-67,890.48

Finding the Fourth Proportional to 124,479.10, 171,781.25 and 67,890.48

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Solution

The fourth proportional to 124,479.10, 171,781.25 and 67,890.48 is: 93,688.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,479.10 : 171,781.25 = 67,890.48 : x
  2. Step 2: Convert to fraction form
    124,479.10/171,781.25 = 67,890.48/x
  3. Step 3: Cross multiply
    124,479.10x = 171,781.25 × 67,890.48
  4. Step 4: Simplify right side
    124,479.10x = 11,662,311,517.50
  5. Step 5: Solve for x
    x = 11,662,311,517.50/124,479.10
  6. Step 6: Final answer
    x = 93,688.91

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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.