Home / 98,005.38-135,104.25-69,274.34

Finding the Fourth Proportional to 98,005.38, 135,104.25 and 69,274.34

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Solution

The fourth proportional to 98,005.38, 135,104.25 and 69,274.34 is: 95,497.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,005.38 : 135,104.25 = 69,274.34 : x
  2. Step 2: Convert to fraction form
    98,005.38/135,104.25 = 69,274.34/x
  3. Step 3: Cross multiply
    98,005.38x = 135,104.25 × 69,274.34
  4. Step 4: Simplify right side
    98,005.38x = 9,359,257,840.84
  5. Step 5: Solve for x
    x = 9,359,257,840.84/98,005.38
  6. Step 6: Final answer
    x = 95,497.39

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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.