Home / 121,445.20-182,167.80-38,339.20

Finding the Fourth Proportional to 121,445.20, 182,167.80 and 38,339.20

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Solution

The fourth proportional to 121,445.20, 182,167.80 and 38,339.20 is: 57,508.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,445.20 : 182,167.80 = 38,339.20 : x
  2. Step 2: Convert to fraction form
    121,445.20/182,167.80 = 38,339.20/x
  3. Step 3: Cross multiply
    121,445.20x = 182,167.80 × 38,339.20
  4. Step 4: Simplify right side
    121,445.20x = 6,984,167,717.76
  5. Step 5: Solve for x
    x = 6,984,167,717.76/121,445.20
  6. Step 6: Final answer
    x = 57,508.80

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1.5x scale

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.