Home / 131,249.03-181,123.29-74,660.40

Finding the Fourth Proportional to 131,249.03, 181,123.29 and 74,660.40

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Solution

The fourth proportional to 131,249.03, 181,123.29 and 74,660.40 is: 103,031.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,249.03 : 181,123.29 = 74,660.40 : x
  2. Step 2: Convert to fraction form
    131,249.03/181,123.29 = 74,660.40/x
  3. Step 3: Cross multiply
    131,249.03x = 181,123.29 × 74,660.40
  4. Step 4: Simplify right side
    131,249.03x = 13,522,737,280.72
  5. Step 5: Solve for x
    x = 13,522,737,280.72/131,249.03
  6. Step 6: Final answer
    x = 103,031.14

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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.