Home / 121,843.10-182,764.65-42,965.30

Finding the Fourth Proportional to 121,843.10, 182,764.65 and 42,965.30

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Solution

The fourth proportional to 121,843.10, 182,764.65 and 42,965.30 is: 64,447.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,843.10 : 182,764.65 = 42,965.30 : x
  2. Step 2: Convert to fraction form
    121,843.10/182,764.65 = 42,965.30/x
  3. Step 3: Cross multiply
    121,843.10x = 182,764.65 × 42,965.30
  4. Step 4: Simplify right side
    121,843.10x = 7,852,538,016.65
  5. Step 5: Solve for x
    x = 7,852,538,016.65/121,843.10
  6. Step 6: Final answer
    x = 64,447.95

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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.