Home / 99,589.60-137,389.20-67,313.92

Finding the Fourth Proportional to 99,589.60, 137,389.20 and 67,313.92

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Solution

The fourth proportional to 99,589.60, 137,389.20 and 67,313.92 is: 92,863.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,589.60 : 137,389.20 = 67,313.92 : x
  2. Step 2: Convert to fraction form
    99,589.60/137,389.20 = 67,313.92/x
  3. Step 3: Cross multiply
    99,589.60x = 137,389.20 × 67,313.92
  4. Step 4: Simplify right side
    99,589.60x = 9,248,205,617.66
  5. Step 5: Solve for x
    x = 9,248,205,617.66/99,589.60
  6. Step 6: Final answer
    x = 92,863.17

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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.