Home / 188,663.10-260,340.84-103,785.66

Finding the Fourth Proportional to 188,663.10, 260,340.84 and 103,785.66

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Solution

The fourth proportional to 188,663.10, 260,340.84 and 103,785.66 is: 143,216.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,663.10 : 260,340.84 = 103,785.66 : x
  2. Step 2: Convert to fraction form
    188,663.10/260,340.84 = 103,785.66/x
  3. Step 3: Cross multiply
    188,663.10x = 260,340.84 × 103,785.66
  4. Step 4: Simplify right side
    188,663.10x = 27,019,645,904.35
  5. Step 5: Solve for x
    x = 27,019,645,904.35/188,663.10
  6. Step 6: Final answer
    x = 143,216.38

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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.