Home / 266,130.12-399,108.78-88,589.46

Finding the Fourth Proportional to 266,130.12, 399,108.78 and 88,589.46

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Solution

The fourth proportional to 266,130.12, 399,108.78 and 88,589.46 is: 132,855.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,130.12 : 399,108.78 = 88,589.46 : x
  2. Step 2: Convert to fraction form
    266,130.12/399,108.78 = 88,589.46/x
  3. Step 3: Cross multiply
    266,130.12x = 399,108.78 × 88,589.46
  4. Step 4: Simplify right side
    266,130.12x = 35,356,831,301.46
  5. Step 5: Solve for x
    x = 35,356,831,301.46/266,130.12
  6. Step 6: Final answer
    x = 132,855.43

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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.