Home / 126,736.76-174,687.90-89,955.66

Finding the Fourth Proportional to 126,736.76, 174,687.90 and 89,955.66

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Solution

The fourth proportional to 126,736.76, 174,687.90 and 89,955.66 is: 123,990.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,736.76 : 174,687.90 = 89,955.66 : x
  2. Step 2: Convert to fraction form
    126,736.76/174,687.90 = 89,955.66/x
  3. Step 3: Cross multiply
    126,736.76x = 174,687.90 × 89,955.66
  4. Step 4: Simplify right side
    126,736.76x = 15,714,165,338.51
  5. Step 5: Solve for x
    x = 15,714,165,338.51/126,736.76
  6. Step 6: Final answer
    x = 123,990.59

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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.