Home / 121,640.20-182,460.30-88,203.40

Finding the Fourth Proportional to 121,640.20, 182,460.30 and 88,203.40

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Solution

The fourth proportional to 121,640.20, 182,460.30 and 88,203.40 is: 132,305.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,640.20 : 182,460.30 = 88,203.40 : x
  2. Step 2: Convert to fraction form
    121,640.20/182,460.30 = 88,203.40/x
  3. Step 3: Cross multiply
    121,640.20x = 182,460.30 × 88,203.40
  4. Step 4: Simplify right side
    121,640.20x = 16,093,618,825.02
  5. Step 5: Solve for x
    x = 16,093,618,825.02/121,640.20
  6. Step 6: Final answer
    x = 132,305.10

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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.