Home / 159,517.76-220,144.34-87,897.77

Finding the Fourth Proportional to 159,517.76, 220,144.34 and 87,897.77

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Solution

The fourth proportional to 159,517.76, 220,144.34 and 87,897.77 is: 121,304.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,517.76 : 220,144.34 = 87,897.77 : x
  2. Step 2: Convert to fraction form
    159,517.76/220,144.34 = 87,897.77/x
  3. Step 3: Cross multiply
    159,517.76x = 220,144.34 × 87,897.77
  4. Step 4: Simplify right side
    159,517.76x = 19,350,196,124.63
  5. Step 5: Solve for x
    x = 19,350,196,124.63/159,517.76
  6. Step 6: Final answer
    x = 121,304.34

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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.