Home / 215,841.16-323,683.98-91,191.88

Finding the Fourth Proportional to 215,841.16, 323,683.98 and 91,191.88

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Solution

The fourth proportional to 215,841.16, 323,683.98 and 91,191.88 is: 136,754.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,841.16 : 323,683.98 = 91,191.88 : x
  2. Step 2: Convert to fraction form
    215,841.16/323,683.98 = 91,191.88/x
  3. Step 3: Cross multiply
    215,841.16x = 323,683.98 × 91,191.88
  4. Step 4: Simplify right side
    215,841.16x = 29,517,350,662.08
  5. Step 5: Solve for x
    x = 29,517,350,662.08/215,841.16
  6. Step 6: Final answer
    x = 136,754.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.