Home / 182,131.20-273,196.80-128,987.10

Finding the Fourth Proportional to 182,131.20, 273,196.80 and 128,987.10

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Solution

The fourth proportional to 182,131.20, 273,196.80 and 128,987.10 is: 193,480.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    182,131.20 : 273,196.80 = 128,987.10 : x
  2. Step 2: Convert to fraction form
    182,131.20/273,196.80 = 128,987.10/x
  3. Step 3: Cross multiply
    182,131.20x = 273,196.80 × 128,987.10
  4. Step 4: Simplify right side
    182,131.20x = 35,238,862,961.28
  5. Step 5: Solve for x
    x = 35,238,862,961.28/182,131.20
  6. Step 6: Final answer
    x = 193,480.65

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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.