Home / 189,557.90-261,590.44-103,517.68

Finding the Fourth Proportional to 189,557.90, 261,590.44 and 103,517.68

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Solution

The fourth proportional to 189,557.90, 261,590.44 and 103,517.68 is: 142,854.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,557.90 : 261,590.44 = 103,517.68 : x
  2. Step 2: Convert to fraction form
    189,557.90/261,590.44 = 103,517.68/x
  3. Step 3: Cross multiply
    189,557.90x = 261,590.44 × 103,517.68
  4. Step 4: Simplify right side
    189,557.90x = 27,079,235,458.98
  5. Step 5: Solve for x
    x = 27,079,235,458.98/189,557.90
  6. Step 6: Final answer
    x = 142,854.69

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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.