Home / 126,990.23-175,365.09-81,746.73

Finding the Fourth Proportional to 126,990.23, 175,365.09 and 81,746.73

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Solution

The fourth proportional to 126,990.23, 175,365.09 and 81,746.73 is: 112,886.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,990.23 : 175,365.09 = 81,746.73 : x
  2. Step 2: Convert to fraction form
    126,990.23/175,365.09 = 81,746.73/x
  3. Step 3: Cross multiply
    126,990.23x = 175,365.09 × 81,746.73
  4. Step 4: Simplify right side
    126,990.23x = 14,335,522,663.66
  5. Step 5: Solve for x
    x = 14,335,522,663.66/126,990.23
  6. Step 6: Final answer
    x = 112,886.82

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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.