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Finding the Fourth Proportional to 185,060.80, 277,720.80 and 79,955.20

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Solution

The fourth proportional to 185,060.80, 277,720.80 and 79,955.20 is: 119,988.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,060.80 : 277,720.80 = 79,955.20 : x
  2. Step 2: Convert to fraction form
    185,060.80/277,720.80 = 79,955.20/x
  3. Step 3: Cross multiply
    185,060.80x = 277,720.80 × 79,955.20
  4. Step 4: Simplify right side
    185,060.80x = 22,205,222,108.16
  5. Step 5: Solve for x
    x = 22,205,222,108.16/185,060.80
  6. Step 6: Final answer
    x = 119,988.79

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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.