Home / 156,667.38-216,200.45-85,046.90

Finding the Fourth Proportional to 156,667.38, 216,200.45 and 85,046.90

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Solution

The fourth proportional to 156,667.38, 216,200.45 and 85,046.90 is: 117,364.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,667.38 : 216,200.45 = 85,046.90 : x
  2. Step 2: Convert to fraction form
    156,667.38/216,200.45 = 85,046.90/x
  3. Step 3: Cross multiply
    156,667.38x = 216,200.45 × 85,046.90
  4. Step 4: Simplify right side
    156,667.38x = 18,387,176,544.87
  5. Step 5: Solve for x
    x = 18,387,176,544.87/156,667.38
  6. Step 6: Final answer
    x = 117,364.42

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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.