Home / 266,519.88-399,501.18-126,111.24

Finding the Fourth Proportional to 266,519.88, 399,501.18 and 126,111.24

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Solution

The fourth proportional to 266,519.88, 399,501.18 and 126,111.24 is: 189,035.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,519.88 : 399,501.18 = 126,111.24 : x
  2. Step 2: Convert to fraction form
    266,519.88/399,501.18 = 126,111.24/x
  3. Step 3: Cross multiply
    266,519.88x = 399,501.18 × 126,111.24
  4. Step 4: Simplify right side
    266,519.88x = 50,381,589,191.26
  5. Step 5: Solve for x
    x = 50,381,589,191.26/266,519.88
  6. Step 6: Final answer
    x = 189,035.01

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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.