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Finding the Fourth Proportional to 147,927.50, 204,139.95 and 80,859.50

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Solution

The fourth proportional to 147,927.50, 204,139.95 and 80,859.50 is: 111,586.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,927.50 : 204,139.95 = 80,859.50 : x
  2. Step 2: Convert to fraction form
    147,927.50/204,139.95 = 80,859.50/x
  3. Step 3: Cross multiply
    147,927.50x = 204,139.95 × 80,859.50
  4. Step 4: Simplify right side
    147,927.50x = 16,506,654,287.03
  5. Step 5: Solve for x
    x = 16,506,654,287.03/147,927.50
  6. Step 6: Final answer
    x = 111,586.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.