Home / 120,985.37-181,514.97-61,862.57

Finding the Fourth Proportional to 120,985.37, 181,514.97 and 61,862.57

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Solution

The fourth proportional to 120,985.37, 181,514.97 and 61,862.57 is: 92,812.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,985.37 : 181,514.97 = 61,862.57 : x
  2. Step 2: Convert to fraction form
    120,985.37/181,514.97 = 61,862.57/x
  3. Step 3: Cross multiply
    120,985.37x = 181,514.97 × 61,862.57
  4. Step 4: Simplify right side
    120,985.37x = 11,228,981,630.10
  5. Step 5: Solve for x
    x = 11,228,981,630.10/120,985.37
  6. Step 6: Final answer
    x = 92,812.73

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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.