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Finding the Fourth Proportional to 148,960.71, 205,566.66 and 80,978.22

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Solution

The fourth proportional to 148,960.71, 205,566.66 and 80,978.22 is: 111,750.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,960.71 : 205,566.66 = 80,978.22 : x
  2. Step 2: Convert to fraction form
    148,960.71/205,566.66 = 80,978.22/x
  3. Step 3: Cross multiply
    148,960.71x = 205,566.66 × 80,978.22
  4. Step 4: Simplify right side
    148,960.71x = 16,646,422,218.15
  5. Step 5: Solve for x
    x = 16,646,422,218.15/148,960.71
  6. Step 6: Final answer
    x = 111,750.42

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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.