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Finding the Fourth Proportional to 108,951.40, 150,370.80 and 90,773.34

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Solution

The fourth proportional to 108,951.40, 150,370.80 and 90,773.34 is: 125,282.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,951.40 : 150,370.80 = 90,773.34 : x
  2. Step 2: Convert to fraction form
    108,951.40/150,370.80 = 90,773.34/x
  3. Step 3: Cross multiply
    108,951.40x = 150,370.80 × 90,773.34
  4. Step 4: Simplify right side
    108,951.40x = 13,649,659,754.47
  5. Step 5: Solve for x
    x = 13,649,659,754.47/108,951.40
  6. Step 6: Final answer
    x = 125,282.10

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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.