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Finding the Fourth Proportional to 109,544.68, 151,173.12 and 61,797.88

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Solution

The fourth proportional to 109,544.68, 151,173.12 and 61,797.88 is: 85,281.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,544.68 : 151,173.12 = 61,797.88 : x
  2. Step 2: Convert to fraction form
    109,544.68/151,173.12 = 61,797.88/x
  3. Step 3: Cross multiply
    109,544.68x = 151,173.12 × 61,797.88
  4. Step 4: Simplify right side
    109,544.68x = 9,342,178,182.79
  5. Step 5: Solve for x
    x = 9,342,178,182.79/109,544.68
  6. Step 6: Final answer
    x = 85,281.90

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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.