Home / 180,951.24-249,711.72-100,377.90

Finding the Fourth Proportional to 180,951.24, 249,711.72 and 100,377.90

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Solution

The fourth proportional to 180,951.24, 249,711.72 and 100,377.90 is: 138,520.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,951.24 : 249,711.72 = 100,377.90 : x
  2. Step 2: Convert to fraction form
    180,951.24/249,711.72 = 100,377.90/x
  3. Step 3: Cross multiply
    180,951.24x = 249,711.72 × 100,377.90
  4. Step 4: Simplify right side
    180,951.24x = 25,065,538,058.99
  5. Step 5: Solve for x
    x = 25,065,538,058.99/180,951.24
  6. Step 6: Final answer
    x = 138,520.95

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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.