Home / 91,908.18-126,884.61-73,712.34

Finding the Fourth Proportional to 91,908.18, 126,884.61 and 73,712.34

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Solution

The fourth proportional to 91,908.18, 126,884.61 and 73,712.34 is: 101,764.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,908.18 : 126,884.61 = 73,712.34 : x
  2. Step 2: Convert to fraction form
    91,908.18/126,884.61 = 73,712.34/x
  3. Step 3: Cross multiply
    91,908.18x = 126,884.61 × 73,712.34
  4. Step 4: Simplify right side
    91,908.18x = 9,352,961,513.09
  5. Step 5: Solve for x
    x = 9,352,961,513.09/91,908.18
  6. Step 6: Final answer
    x = 101,764.19

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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.