Home / 159,517.26-220,143.65-87,897.27

Finding the Fourth Proportional to 159,517.26, 220,143.65 and 87,897.27

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Solution

The fourth proportional to 159,517.26, 220,143.65 and 87,897.27 is: 121,303.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,517.26 : 220,143.65 = 87,897.27 : x
  2. Step 2: Convert to fraction form
    159,517.26/220,143.65 = 87,897.27/x
  3. Step 3: Cross multiply
    159,517.26x = 220,143.65 × 87,897.27
  4. Step 4: Simplify right side
    159,517.26x = 19,350,025,403.35
  5. Step 5: Solve for x
    x = 19,350,025,403.35/159,517.26
  6. Step 6: Final answer
    x = 121,303.65

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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.