Home / 156,949.90-216,590.39-85,329.42

Finding the Fourth Proportional to 156,949.90, 216,590.39 and 85,329.42

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Solution

The fourth proportional to 156,949.90, 216,590.39 and 85,329.42 is: 117,754.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,949.90 : 216,590.39 = 85,329.42 : x
  2. Step 2: Convert to fraction form
    156,949.90/216,590.39 = 85,329.42/x
  3. Step 3: Cross multiply
    156,949.90x = 216,590.39 × 85,329.42
  4. Step 4: Simplify right side
    156,949.90x = 18,481,532,356.27
  5. Step 5: Solve for x
    x = 18,481,532,356.27/156,949.90
  6. Step 6: Final answer
    x = 117,754.34

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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.