Home / 140,542.71-193,948.88-76,880.49

Finding the Fourth Proportional to 140,542.71, 193,948.88 and 76,880.49

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Solution

The fourth proportional to 140,542.71, 193,948.88 and 76,880.49 is: 106,095.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,542.71 : 193,948.88 = 76,880.49 : x
  2. Step 2: Convert to fraction form
    140,542.71/193,948.88 = 76,880.49/x
  3. Step 3: Cross multiply
    140,542.71x = 193,948.88 × 76,880.49
  4. Step 4: Simplify right side
    140,542.71x = 14,910,884,544.95
  5. Step 5: Solve for x
    x = 14,910,884,544.95/140,542.71
  6. Step 6: Final answer
    x = 106,095.04

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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.