Home / 125,077.87-172,607.49-67,717.18

Finding the Fourth Proportional to 125,077.87, 172,607.49 and 67,717.18

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Solution

The fourth proportional to 125,077.87, 172,607.49 and 67,717.18 is: 93,449.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,077.87 : 172,607.49 = 67,717.18 : x
  2. Step 2: Convert to fraction form
    125,077.87/172,607.49 = 67,717.18/x
  3. Step 3: Cross multiply
    125,077.87x = 172,607.49 × 67,717.18
  4. Step 4: Simplify right side
    125,077.87x = 11,688,491,606.64
  5. Step 5: Solve for x
    x = 11,688,491,606.64/125,077.87
  6. Step 6: Final answer
    x = 93,449.72

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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.