Home / 156,452.06-215,902.31-84,830.85

Finding the Fourth Proportional to 156,452.06, 215,902.31 and 84,830.85

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Solution

The fourth proportional to 156,452.06, 215,902.31 and 84,830.85 is: 117,065.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,452.06 : 215,902.31 = 84,830.85 : x
  2. Step 2: Convert to fraction form
    156,452.06/215,902.31 = 84,830.85/x
  3. Step 3: Cross multiply
    156,452.06x = 215,902.31 × 84,830.85
  4. Step 4: Simplify right side
    156,452.06x = 18,315,176,050.11
  5. Step 5: Solve for x
    x = 18,315,176,050.11/156,452.06
  6. Step 6: Final answer
    x = 117,065.74

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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.