Home / 124,278.10-171,503.68-67,689.48

Finding the Fourth Proportional to 124,278.10, 171,503.68 and 67,689.48

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Solution

The fourth proportional to 124,278.10, 171,503.68 and 67,689.48 is: 93,411.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,278.10 : 171,503.68 = 67,689.48 : x
  2. Step 2: Convert to fraction form
    124,278.10/171,503.68 = 67,689.48/x
  3. Step 3: Cross multiply
    124,278.10x = 171,503.68 × 67,689.48
  4. Step 4: Simplify right side
    124,278.10x = 11,608,994,917.29
  5. Step 5: Solve for x
    x = 11,608,994,917.29/124,278.10
  6. Step 6: Final answer
    x = 93,411.43

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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.