Home / 127,499.49-191,074.28-80,668.53

Finding the Fourth Proportional to 127,499.49, 191,074.28 and 80,668.53

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Solution

The fourth proportional to 127,499.49, 191,074.28 and 80,668.53 is: 120,892.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,499.49 : 191,074.28 = 80,668.53 : x
  2. Step 2: Convert to fraction form
    127,499.49/191,074.28 = 80,668.53/x
  3. Step 3: Cross multiply
    127,499.49x = 191,074.28 × 80,668.53
  4. Step 4: Simplify right side
    127,499.49x = 15,413,680,885.07
  5. Step 5: Solve for x
    x = 15,413,680,885.07/127,499.49
  6. Step 6: Final answer
    x = 120,892.10

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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.