Home / 125,046.32-172,562.76-68,457.20

Finding the Fourth Proportional to 125,046.32, 172,562.76 and 68,457.20

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Solution

The fourth proportional to 125,046.32, 172,562.76 and 68,457.20 is: 94,470.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,046.32 : 172,562.76 = 68,457.20 : x
  2. Step 2: Convert to fraction form
    125,046.32/172,562.76 = 68,457.20/x
  3. Step 3: Cross multiply
    125,046.32x = 172,562.76 × 68,457.20
  4. Step 4: Simplify right side
    125,046.32x = 11,813,163,373.87
  5. Step 5: Solve for x
    x = 11,813,163,373.87/125,046.32
  6. Step 6: Final answer
    x = 94,470.30

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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.