Home / 188,561.70-260,177.82-105,778.32

Finding the Fourth Proportional to 188,561.70, 260,177.82 and 105,778.32

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Solution

The fourth proportional to 188,561.70, 260,177.82 and 105,778.32 is: 145,953.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,561.70 : 260,177.82 = 105,778.32 : x
  2. Step 2: Convert to fraction form
    188,561.70/260,177.82 = 105,778.32/x
  3. Step 3: Cross multiply
    188,561.70x = 260,177.82 × 105,778.32
  4. Step 4: Simplify right side
    188,561.70x = 27,521,172,700.86
  5. Step 5: Solve for x
    x = 27,521,172,700.86/188,561.70
  6. Step 6: Final answer
    x = 145,953.14

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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.