Home / 112,132.35-154,682.07-69,121.20

Finding the Fourth Proportional to 112,132.35, 154,682.07 and 69,121.20

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Solution

The fourth proportional to 112,132.35, 154,682.07 and 69,121.20 is: 95,349.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,132.35 : 154,682.07 = 69,121.20 : x
  2. Step 2: Convert to fraction form
    112,132.35/154,682.07 = 69,121.20/x
  3. Step 3: Cross multiply
    112,132.35x = 154,682.07 × 69,121.20
  4. Step 4: Simplify right side
    112,132.35x = 10,691,810,296.88
  5. Step 5: Solve for x
    x = 10,691,810,296.88/112,132.35
  6. Step 6: Final answer
    x = 95,349.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.