Home / 129,927.20-194,890.80-56,055.20

Finding the Fourth Proportional to 129,927.20, 194,890.80 and 56,055.20

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Solution

The fourth proportional to 129,927.20, 194,890.80 and 56,055.20 is: 84,082.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,927.20 : 194,890.80 = 56,055.20 : x
  2. Step 2: Convert to fraction form
    129,927.20/194,890.80 = 56,055.20/x
  3. Step 3: Cross multiply
    129,927.20x = 194,890.80 × 56,055.20
  4. Step 4: Simplify right side
    129,927.20x = 10,924,642,772.16
  5. Step 5: Solve for x
    x = 10,924,642,772.16/129,927.20
  6. Step 6: Final answer
    x = 84,082.80

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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.