Home / 121,422.12-182,155.10-54,893.58

Finding the Fourth Proportional to 121,422.12, 182,155.10 and 54,893.58

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Solution

The fourth proportional to 121,422.12, 182,155.10 and 54,893.58 is: 82,350.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,422.12 : 182,155.10 = 54,893.58 : x
  2. Step 2: Convert to fraction form
    121,422.12/182,155.10 = 54,893.58/x
  3. Step 3: Cross multiply
    121,422.12x = 182,155.10 × 54,893.58
  4. Step 4: Simplify right side
    121,422.12x = 9,999,145,279.79
  5. Step 5: Solve for x
    x = 9,999,145,279.79/121,422.12
  6. Step 6: Final answer
    x = 82,350.28

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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.