Home / 188,631.72-260,337.24-172,687.68

Finding the Fourth Proportional to 188,631.72, 260,337.24 and 172,687.68

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Solution

The fourth proportional to 188,631.72, 260,337.24 and 172,687.68 is: 238,332.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,631.72 : 260,337.24 = 172,687.68 : x
  2. Step 2: Convert to fraction form
    188,631.72/260,337.24 = 172,687.68/x
  3. Step 3: Cross multiply
    188,631.72x = 260,337.24 × 172,687.68
  4. Step 4: Simplify right side
    188,631.72x = 44,957,033,993.20
  5. Step 5: Solve for x
    x = 44,957,033,993.20/188,631.72
  6. Step 6: Final answer
    x = 238,332.31

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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.