Home / 121,523.10-182,392.65-71,540.70

Finding the Fourth Proportional to 121,523.10, 182,392.65 and 71,540.70

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Solution

The fourth proportional to 121,523.10, 182,392.65 and 71,540.70 is: 107,374.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,523.10 : 182,392.65 = 71,540.70 : x
  2. Step 2: Convert to fraction form
    121,523.10/182,392.65 = 71,540.70/x
  3. Step 3: Cross multiply
    121,523.10x = 182,392.65 × 71,540.70
  4. Step 4: Simplify right side
    121,523.10x = 13,048,497,855.86
  5. Step 5: Solve for x
    x = 13,048,497,855.86/121,523.10
  6. Step 6: Final answer
    x = 107,374.63

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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.