Home / 131,494.64-181,418.28-74,865.92

Finding the Fourth Proportional to 131,494.64, 181,418.28 and 74,865.92

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Solution

The fourth proportional to 131,494.64, 181,418.28 and 74,865.92 is: 103,289.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,494.64 : 181,418.28 = 74,865.92 : x
  2. Step 2: Convert to fraction form
    131,494.64/181,418.28 = 74,865.92/x
  3. Step 3: Cross multiply
    131,494.64x = 181,418.28 × 74,865.92
  4. Step 4: Simplify right side
    131,494.64x = 13,582,046,437.02
  5. Step 5: Solve for x
    x = 13,582,046,437.02/131,494.64
  6. Step 6: Final answer
    x = 103,289.73

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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.