Home / 126,922.60-189,995.10-112,925.80

Finding the Fourth Proportional to 126,922.60, 189,995.10 and 112,925.80

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Solution

The fourth proportional to 126,922.60, 189,995.10 and 112,925.80 is: 169,042.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,922.60 : 189,995.10 = 112,925.80 : x
  2. Step 2: Convert to fraction form
    126,922.60/189,995.10 = 112,925.80/x
  3. Step 3: Cross multiply
    126,922.60x = 189,995.10 × 112,925.80
  4. Step 4: Simplify right side
    126,922.60x = 21,455,348,663.58
  5. Step 5: Solve for x
    x = 21,455,348,663.58/126,922.60
  6. Step 6: Final answer
    x = 169,042.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.