Home / 131,515.27-181,447.53-74,147.41

Finding the Fourth Proportional to 131,515.27, 181,447.53 and 74,147.41

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Solution

The fourth proportional to 131,515.27, 181,447.53 and 74,147.41 is: 102,298.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,515.27 : 181,447.53 = 74,147.41 : x
  2. Step 2: Convert to fraction form
    131,515.27/181,447.53 = 74,147.41/x
  3. Step 3: Cross multiply
    131,515.27x = 181,447.53 × 74,147.41
  4. Step 4: Simplify right side
    131,515.27x = 13,453,864,400.40
  5. Step 5: Solve for x
    x = 13,453,864,400.40/131,515.27
  6. Step 6: Final answer
    x = 102,298.88

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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.