Home / 121,744.20-182,492.10-82,305.30

Finding the Fourth Proportional to 121,744.20, 182,492.10 and 82,305.30

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Solution

The fourth proportional to 121,744.20, 182,492.10 and 82,305.30 is: 123,373.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,744.20 : 182,492.10 = 82,305.30 : x
  2. Step 2: Convert to fraction form
    121,744.20/182,492.10 = 82,305.30/x
  3. Step 3: Cross multiply
    121,744.20x = 182,492.10 × 82,305.30
  4. Step 4: Simplify right side
    121,744.20x = 15,020,067,038.13
  5. Step 5: Solve for x
    x = 15,020,067,038.13/121,744.20
  6. Step 6: Final answer
    x = 123,373.98

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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.