Home / 223,964.32-309,047.68-137,909.60

Finding the Fourth Proportional to 223,964.32, 309,047.68 and 137,909.60

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Solution

The fourth proportional to 223,964.32, 309,047.68 and 137,909.60 is: 190,301.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,964.32 : 309,047.68 = 137,909.60 : x
  2. Step 2: Convert to fraction form
    223,964.32/309,047.68 = 137,909.60/x
  3. Step 3: Cross multiply
    223,964.32x = 309,047.68 × 137,909.60
  4. Step 4: Simplify right side
    223,964.32x = 42,620,641,929.73
  5. Step 5: Solve for x
    x = 42,620,641,929.73/223,964.32
  6. Step 6: Final answer
    x = 190,301.04

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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.