Home / 109,552.20-151,141.68-71,877.48

Finding the Fourth Proportional to 109,552.20, 151,141.68 and 71,877.48

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Solution

The fourth proportional to 109,552.20, 151,141.68 and 71,877.48 is: 99,164.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,552.20 : 151,141.68 = 71,877.48 : x
  2. Step 2: Convert to fraction form
    109,552.20/151,141.68 = 71,877.48/x
  3. Step 3: Cross multiply
    109,552.20x = 151,141.68 × 71,877.48
  4. Step 4: Simplify right side
    109,552.20x = 10,863,683,081.37
  5. Step 5: Solve for x
    x = 10,863,683,081.37/109,552.20
  6. Step 6: Final answer
    x = 99,164.44

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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.