Home / 129,837.56-194,777.87-45,575.86

Finding the Fourth Proportional to 129,837.56, 194,777.87 and 45,575.86

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Solution

The fourth proportional to 129,837.56, 194,777.87 and 45,575.86 is: 68,371.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,837.56 : 194,777.87 = 45,575.86 : x
  2. Step 2: Convert to fraction form
    129,837.56/194,777.87 = 45,575.86/x
  3. Step 3: Cross multiply
    129,837.56x = 194,777.87 × 45,575.86
  4. Step 4: Simplify right side
    129,837.56x = 8,877,168,934.22
  5. Step 5: Solve for x
    x = 8,877,168,934.22/129,837.56
  6. Step 6: Final answer
    x = 68,371.35

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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.