Home / 156,047.82-215,345.88-88,079.10

Finding the Fourth Proportional to 156,047.82, 215,345.88 and 88,079.10

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Solution

The fourth proportional to 156,047.82, 215,345.88 and 88,079.10 is: 121,549.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,047.82 : 215,345.88 = 88,079.10 : x
  2. Step 2: Convert to fraction form
    156,047.82/215,345.88 = 88,079.10/x
  3. Step 3: Cross multiply
    156,047.82x = 215,345.88 × 88,079.10
  4. Step 4: Simplify right side
    156,047.82x = 18,967,471,299.11
  5. Step 5: Solve for x
    x = 18,967,471,299.11/156,047.82
  6. Step 6: Final answer
    x = 121,549.10

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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.