Home / 156,114.60-215,433.38-88,134.12

Finding the Fourth Proportional to 156,114.60, 215,433.38 and 88,134.12

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Solution

The fourth proportional to 156,114.60, 215,433.38 and 88,134.12 is: 121,622.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,114.60 : 215,433.38 = 88,134.12 : x
  2. Step 2: Convert to fraction form
    156,114.60/215,433.38 = 88,134.12/x
  3. Step 3: Cross multiply
    156,114.60x = 215,433.38 × 88,134.12
  4. Step 4: Simplify right side
    156,114.60x = 18,987,031,364.93
  5. Step 5: Solve for x
    x = 18,987,031,364.93/156,114.60
  6. Step 6: Final answer
    x = 121,622.39

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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.