Home / 223,725.20-308,740.68-123,123.20

Finding the Fourth Proportional to 223,725.20, 308,740.68 and 123,123.20

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Solution

The fourth proportional to 223,725.20, 308,740.68 and 123,123.20 is: 169,909.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,725.20 : 308,740.68 = 123,123.20 : x
  2. Step 2: Convert to fraction form
    223,725.20/308,740.68 = 123,123.20/x
  3. Step 3: Cross multiply
    223,725.20x = 308,740.68 × 123,123.20
  4. Step 4: Simplify right side
    223,725.20x = 38,013,138,948.07
  5. Step 5: Solve for x
    x = 38,013,138,948.07/223,725.20
  6. Step 6: Final answer
    x = 169,909.96

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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.