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Finding the Fourth Proportional to 149,000.88, 205,332.48 and 123,544.20

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Solution

The fourth proportional to 149,000.88, 205,332.48 and 123,544.20 is: 170,251.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,000.88 : 205,332.48 = 123,544.20 : x
  2. Step 2: Convert to fraction form
    149,000.88/205,332.48 = 123,544.20/x
  3. Step 3: Cross multiply
    149,000.88x = 205,332.48 × 123,544.20
  4. Step 4: Simplify right side
    149,000.88x = 25,367,636,975.62
  5. Step 5: Solve for x
    x = 25,367,636,975.62/149,000.88
  6. Step 6: Final answer
    x = 170,251.59

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1.5x scale

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.