Home / 129,873.20-194,897.28-50,978.08

Finding the Fourth Proportional to 129,873.20, 194,897.28 and 50,978.08

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Solution

The fourth proportional to 129,873.20, 194,897.28 and 50,978.08 is: 76,501.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,873.20 : 194,897.28 = 50,978.08 : x
  2. Step 2: Convert to fraction form
    129,873.20/194,897.28 = 50,978.08/x
  3. Step 3: Cross multiply
    129,873.20x = 194,897.28 × 50,978.08
  4. Step 4: Simplify right side
    129,873.20x = 9,935,489,131.62
  5. Step 5: Solve for x
    x = 9,935,489,131.62/129,873.20
  6. Step 6: Final answer
    x = 76,501.46

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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.