Home / 266,129.12-399,107.28-88,588.46

Finding the Fourth Proportional to 266,129.12, 399,107.28 and 88,588.46

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Solution

The fourth proportional to 266,129.12, 399,107.28 and 88,588.46 is: 132,853.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,129.12 : 399,107.28 = 88,588.46 : x
  2. Step 2: Convert to fraction form
    266,129.12/399,107.28 = 88,588.46/x
  3. Step 3: Cross multiply
    266,129.12x = 399,107.28 × 88,588.46
  4. Step 4: Simplify right side
    266,129.12x = 35,356,299,309.99
  5. Step 5: Solve for x
    x = 35,356,299,309.99/266,129.12
  6. Step 6: Final answer
    x = 132,853.93

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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.