Home / 121,335.20-182,002.80-91,810.70

Finding the Fourth Proportional to 121,335.20, 182,002.80 and 91,810.70

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Solution

The fourth proportional to 121,335.20, 182,002.80 and 91,810.70 is: 137,716.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,335.20 : 182,002.80 = 91,810.70 : x
  2. Step 2: Convert to fraction form
    121,335.20/182,002.80 = 91,810.70/x
  3. Step 3: Cross multiply
    121,335.20x = 182,002.80 × 91,810.70
  4. Step 4: Simplify right side
    121,335.20x = 16,709,804,469.96
  5. Step 5: Solve for x
    x = 16,709,804,469.96/121,335.20
  6. Step 6: Final answer
    x = 137,716.05

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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.