Home / 151,939.28-209,380.20-109,417.52

Finding the Fourth Proportional to 151,939.28, 209,380.20 and 109,417.52

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Solution

The fourth proportional to 151,939.28, 209,380.20 and 109,417.52 is: 150,783.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,939.28 : 209,380.20 = 109,417.52 : x
  2. Step 2: Convert to fraction form
    151,939.28/209,380.20 = 109,417.52/x
  3. Step 3: Cross multiply
    151,939.28x = 209,380.20 × 109,417.52
  4. Step 4: Simplify right side
    151,939.28x = 22,909,862,221.10
  5. Step 5: Solve for x
    x = 22,909,862,221.10/151,939.28
  6. Step 6: Final answer
    x = 150,783.01

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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.