Home / 131,247.68-181,135.40-80,294.35

Finding the Fourth Proportional to 131,247.68, 181,135.40 and 80,294.35

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Solution

The fourth proportional to 131,247.68, 181,135.40 and 80,294.35 is: 110,814.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,247.68 : 181,135.40 = 80,294.35 : x
  2. Step 2: Convert to fraction form
    131,247.68/181,135.40 = 80,294.35/x
  3. Step 3: Cross multiply
    131,247.68x = 181,135.40 × 80,294.35
  4. Step 4: Simplify right side
    131,247.68x = 14,544,149,204.99
  5. Step 5: Solve for x
    x = 14,544,149,204.99/131,247.68
  6. Step 6: Final answer
    x = 110,814.52

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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.