Home / 148,824.20-223,236.30-138,909.80

Finding the Fourth Proportional to 148,824.20, 223,236.30 and 138,909.80

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Solution

The fourth proportional to 148,824.20, 223,236.30 and 138,909.80 is: 208,364.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,824.20 : 223,236.30 = 138,909.80 : x
  2. Step 2: Convert to fraction form
    148,824.20/223,236.30 = 138,909.80/x
  3. Step 3: Cross multiply
    148,824.20x = 223,236.30 × 138,909.80
  4. Step 4: Simplify right side
    148,824.20x = 31,009,709,785.74
  5. Step 5: Solve for x
    x = 31,009,709,785.74/148,824.20
  6. Step 6: Final answer
    x = 208,364.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.