Home / 180,819.21-249,734.76-123,359.88

Finding the Fourth Proportional to 180,819.21, 249,734.76 and 123,359.88

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Solution

The fourth proportional to 180,819.21, 249,734.76 and 123,359.88 is: 170,375.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,819.21 : 249,734.76 = 123,359.88 : x
  2. Step 2: Convert to fraction form
    180,819.21/249,734.76 = 123,359.88/x
  3. Step 3: Cross multiply
    180,819.21x = 249,734.76 × 123,359.88
  4. Step 4: Simplify right side
    180,819.21x = 30,807,250,025.43
  5. Step 5: Solve for x
    x = 30,807,250,025.43/180,819.21
  6. Step 6: Final answer
    x = 170,375.98

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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.