Home / 156,431.94-215,888.55-88,463.22

Finding the Fourth Proportional to 156,431.94, 215,888.55 and 88,463.22

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Solution

The fourth proportional to 156,431.94, 215,888.55 and 88,463.22 is: 122,086.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,431.94 : 215,888.55 = 88,463.22 : x
  2. Step 2: Convert to fraction form
    156,431.94/215,888.55 = 88,463.22/x
  3. Step 3: Cross multiply
    156,431.94x = 215,888.55 × 88,463.22
  4. Step 4: Simplify right side
    156,431.94x = 19,098,196,294.13
  5. Step 5: Solve for x
    x = 19,098,196,294.13/156,431.94
  6. Step 6: Final answer
    x = 122,086.30

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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.