Home / 126,391.59-174,450.31-72,707.63

Finding the Fourth Proportional to 126,391.59, 174,450.31 and 72,707.63

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Solution

The fourth proportional to 126,391.59, 174,450.31 and 72,707.63 is: 100,353.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,391.59 : 174,450.31 = 72,707.63 : x
  2. Step 2: Convert to fraction form
    126,391.59/174,450.31 = 72,707.63/x
  3. Step 3: Cross multiply
    126,391.59x = 174,450.31 × 72,707.63
  4. Step 4: Simplify right side
    126,391.59x = 12,683,867,538.84
  5. Step 5: Solve for x
    x = 12,683,867,538.84/126,391.59
  6. Step 6: Final answer
    x = 100,353.73

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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.