Home / 187,421.50-281,132.52-76,613.50

Finding the Fourth Proportional to 187,421.50, 281,132.52 and 76,613.50

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Solution

The fourth proportional to 187,421.50, 281,132.52 and 76,613.50 is: 114,920.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,421.50 : 281,132.52 = 76,613.50 : x
  2. Step 2: Convert to fraction form
    187,421.50/281,132.52 = 76,613.50/x
  3. Step 3: Cross multiply
    187,421.50x = 281,132.52 × 76,613.50
  4. Step 4: Simplify right side
    187,421.50x = 21,538,546,321.02
  5. Step 5: Solve for x
    x = 21,538,546,321.02/187,421.50
  6. Step 6: Final answer
    x = 114,920.36

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1.5x scale

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.