Home / 112,897.20-155,818.44-65,143.92

Finding the Fourth Proportional to 112,897.20, 155,818.44 and 65,143.92

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Solution

The fourth proportional to 112,897.20, 155,818.44 and 65,143.92 is: 89,910.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,897.20 : 155,818.44 = 65,143.92 : x
  2. Step 2: Convert to fraction form
    112,897.20/155,818.44 = 65,143.92/x
  3. Step 3: Cross multiply
    112,897.20x = 155,818.44 × 65,143.92
  4. Step 4: Simplify right side
    112,897.20x = 10,150,623,989.88
  5. Step 5: Solve for x
    x = 10,150,623,989.88/112,897.20
  6. Step 6: Final answer
    x = 89,910.33

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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.