Home / 102,079.28-140,848.70-59,629.61

Finding the Fourth Proportional to 102,079.28, 140,848.70 and 59,629.61

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Solution

The fourth proportional to 102,079.28, 140,848.70 and 59,629.61 is: 82,276.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,079.28 : 140,848.70 = 59,629.61 : x
  2. Step 2: Convert to fraction form
    102,079.28/140,848.70 = 59,629.61/x
  3. Step 3: Cross multiply
    102,079.28x = 140,848.70 × 59,629.61
  4. Step 4: Simplify right side
    102,079.28x = 8,398,752,751.86
  5. Step 5: Solve for x
    x = 8,398,752,751.86/102,079.28
  6. Step 6: Final answer
    x = 82,276.76

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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.