Home / 159,132.24-219,602.22-91,171.20

Finding the Fourth Proportional to 159,132.24, 219,602.22 and 91,171.20

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Solution

The fourth proportional to 159,132.24, 219,602.22 and 91,171.20 is: 125,816.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,132.24 : 219,602.22 = 91,171.20 : x
  2. Step 2: Convert to fraction form
    159,132.24/219,602.22 = 91,171.20/x
  3. Step 3: Cross multiply
    159,132.24x = 219,602.22 × 91,171.20
  4. Step 4: Simplify right side
    159,132.24x = 20,021,397,920.06
  5. Step 5: Solve for x
    x = 20,021,397,920.06/159,132.24
  6. Step 6: Final answer
    x = 125,816.10

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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.