Home / 223,965.32-309,049.06-137,910.60

Finding the Fourth Proportional to 223,965.32, 309,049.06 and 137,910.60

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Solution

The fourth proportional to 223,965.32, 309,049.06 and 137,910.60 is: 190,302.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,965.32 : 309,049.06 = 137,910.60 : x
  2. Step 2: Convert to fraction form
    223,965.32/309,049.06 = 137,910.60/x
  3. Step 3: Cross multiply
    223,965.32x = 309,049.06 × 137,910.60
  4. Step 4: Simplify right side
    223,965.32x = 42,621,141,294.04
  5. Step 5: Solve for x
    x = 42,621,141,294.04/223,965.32
  6. Step 6: Final answer
    x = 190,302.42

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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.