Home / 123,008.10-184,512.15-112,121.70

Finding the Fourth Proportional to 123,008.10, 184,512.15 and 112,121.70

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Solution

The fourth proportional to 123,008.10, 184,512.15 and 112,121.70 is: 168,182.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,008.10 : 184,512.15 = 112,121.70 : x
  2. Step 2: Convert to fraction form
    123,008.10/184,512.15 = 112,121.70/x
  3. Step 3: Cross multiply
    123,008.10x = 184,512.15 × 112,121.70
  4. Step 4: Simplify right side
    123,008.10x = 20,687,815,928.66
  5. Step 5: Solve for x
    x = 20,687,815,928.66/123,008.10
  6. Step 6: Final answer
    x = 168,182.55

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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.