Home / 124,278.60-171,504.38-67,689.98

Finding the Fourth Proportional to 124,278.60, 171,504.38 and 67,689.98

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Solution

The fourth proportional to 124,278.60, 171,504.38 and 67,689.98 is: 93,412.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,278.60 : 171,504.38 = 67,689.98 : x
  2. Step 2: Convert to fraction form
    124,278.60/171,504.38 = 67,689.98/x
  3. Step 3: Cross multiply
    124,278.60x = 171,504.38 × 67,689.98
  4. Step 4: Simplify right side
    124,278.60x = 11,609,126,856.14
  5. Step 5: Solve for x
    x = 11,609,126,856.14/124,278.60
  6. Step 6: Final answer
    x = 93,412.11

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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.