Home / 105,520.28-145,631.85-60,187.88

Finding the Fourth Proportional to 105,520.28, 145,631.85 and 60,187.88

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Solution

The fourth proportional to 105,520.28, 145,631.85 and 60,187.88 is: 83,067.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,520.28 : 145,631.85 = 60,187.88 : x
  2. Step 2: Convert to fraction form
    105,520.28/145,631.85 = 60,187.88/x
  3. Step 3: Cross multiply
    105,520.28x = 145,631.85 × 60,187.88
  4. Step 4: Simplify right side
    105,520.28x = 8,765,272,311.98
  5. Step 5: Solve for x
    x = 8,765,272,311.98/105,520.28
  6. Step 6: Final answer
    x = 83,067.18

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1.5x scale

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.