Home / 128,079.60-192,119.31-34,585.26

Finding the Fourth Proportional to 128,079.60, 192,119.31 and 34,585.26

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Solution

The fourth proportional to 128,079.60, 192,119.31 and 34,585.26 is: 51,877.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,079.60 : 192,119.31 = 34,585.26 : x
  2. Step 2: Convert to fraction form
    128,079.60/192,119.31 = 34,585.26/x
  3. Step 3: Cross multiply
    128,079.60x = 192,119.31 × 34,585.26
  4. Step 4: Simplify right side
    128,079.60x = 6,644,496,287.37
  5. Step 5: Solve for x
    x = 6,644,496,287.37/128,079.60
  6. Step 6: Final answer
    x = 51,877.87

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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.