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Finding the Fourth Proportional to 111,732.80, 154,194.30 and 60,748.95

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Solution

The fourth proportional to 111,732.80, 154,194.30 and 60,748.95 is: 83,835.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,732.80 : 154,194.30 = 60,748.95 : x
  2. Step 2: Convert to fraction form
    111,732.80/154,194.30 = 60,748.95/x
  3. Step 3: Cross multiply
    111,732.80x = 154,194.30 × 60,748.95
  4. Step 4: Simplify right side
    111,732.80x = 9,367,141,820.99
  5. Step 5: Solve for x
    x = 9,367,141,820.99/111,732.80
  6. Step 6: Final answer
    x = 83,835.21

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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.