Home / 131,514.52-181,445.60-74,885.80

Finding the Fourth Proportional to 131,514.52, 181,445.60 and 74,885.80

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Solution

The fourth proportional to 131,514.52, 181,445.60 and 74,885.80 is: 103,317.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,514.52 : 181,445.60 = 74,885.80 : x
  2. Step 2: Convert to fraction form
    131,514.52/181,445.60 = 74,885.80/x
  3. Step 3: Cross multiply
    131,514.52x = 181,445.60 × 74,885.80
  4. Step 4: Simplify right side
    131,514.52x = 13,587,698,912.48
  5. Step 5: Solve for x
    x = 13,587,698,912.48/131,514.52
  6. Step 6: Final answer
    x = 103,317.10

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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.