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Finding the Fourth Proportional to 135,695.40, 203,543.10 and 88,456.20

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Solution

The fourth proportional to 135,695.40, 203,543.10 and 88,456.20 is: 132,684.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,695.40 : 203,543.10 = 88,456.20 : x
  2. Step 2: Convert to fraction form
    135,695.40/203,543.10 = 88,456.20/x
  3. Step 3: Cross multiply
    135,695.40x = 203,543.10 × 88,456.20
  4. Step 4: Simplify right side
    135,695.40x = 18,004,649,162.22
  5. Step 5: Solve for x
    x = 18,004,649,162.22/135,695.40
  6. Step 6: Final answer
    x = 132,684.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.