Home / 156,745.06-216,304.62-85,123.54

Finding the Fourth Proportional to 156,745.06, 216,304.62 and 85,123.54

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Solution

The fourth proportional to 156,745.06, 216,304.62 and 85,123.54 is: 117,468.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,745.06 : 216,304.62 = 85,123.54 : x
  2. Step 2: Convert to fraction form
    156,745.06/216,304.62 = 85,123.54/x
  3. Step 3: Cross multiply
    156,745.06x = 216,304.62 × 85,123.54
  4. Step 4: Simplify right side
    156,745.06x = 18,412,614,972.75
  5. Step 5: Solve for x
    x = 18,412,614,972.75/156,745.06
  6. Step 6: Final answer
    x = 117,468.55

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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.