Home / 136,081.60-204,122.48-74,145.76

Finding the Fourth Proportional to 136,081.60, 204,122.48 and 74,145.76

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Solution

The fourth proportional to 136,081.60, 204,122.48 and 74,145.76 is: 111,218.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,081.60 : 204,122.48 = 74,145.76 : x
  2. Step 2: Convert to fraction form
    136,081.60/204,122.48 = 74,145.76/x
  3. Step 3: Cross multiply
    136,081.60x = 204,122.48 × 74,145.76
  4. Step 4: Simplify right side
    136,081.60x = 15,134,816,412.68
  5. Step 5: Solve for x
    x = 15,134,816,412.68/136,081.60
  6. Step 6: Final answer
    x = 111,218.68

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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.