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Finding the Fourth Proportional to 122,242.56, 168,689.92 and 69,250.56

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Solution

The fourth proportional to 122,242.56, 168,689.92 and 69,250.56 is: 95,563.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,242.56 : 168,689.92 = 69,250.56 : x
  2. Step 2: Convert to fraction form
    122,242.56/168,689.92 = 69,250.56/x
  3. Step 3: Cross multiply
    122,242.56x = 168,689.92 × 69,250.56
  4. Step 4: Simplify right side
    122,242.56x = 11,681,871,426.36
  5. Step 5: Solve for x
    x = 11,681,871,426.36/122,242.56
  6. Step 6: Final answer
    x = 95,563.05

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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.