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Finding the Fourth Proportional to 83,927.30, 125,959.80 and 83,271.20

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Solution

The fourth proportional to 83,927.30, 125,959.80 and 83,271.20 is: 124,975.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,927.30 : 125,959.80 = 83,271.20 : x
  2. Step 2: Convert to fraction form
    83,927.30/125,959.80 = 83,271.20/x
  3. Step 3: Cross multiply
    83,927.30x = 125,959.80 × 83,271.20
  4. Step 4: Simplify right side
    83,927.30x = 10,488,823,697.76
  5. Step 5: Solve for x
    x = 10,488,823,697.76/83,927.30
  6. Step 6: Final answer
    x = 124,975.11

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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.