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Finding the Fourth Proportional to 185,010.80, 277,645.80 and 79,905.20

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Solution

The fourth proportional to 185,010.80, 277,645.80 and 79,905.20 is: 119,913.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,010.80 : 277,645.80 = 79,905.20 : x
  2. Step 2: Convert to fraction form
    185,010.80/277,645.80 = 79,905.20/x
  3. Step 3: Cross multiply
    185,010.80x = 277,645.80 × 79,905.20
  4. Step 4: Simplify right side
    185,010.80x = 22,185,343,178.16
  5. Step 5: Solve for x
    x = 22,185,343,178.16/185,010.80
  6. Step 6: Final answer
    x = 119,913.77

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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.