Home / 140,357.44-193,732.32-86,651.20

Finding the Fourth Proportional to 140,357.44, 193,732.32 and 86,651.20

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Solution

The fourth proportional to 140,357.44, 193,732.32 and 86,651.20 is: 119,602.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,357.44 : 193,732.32 = 86,651.20 : x
  2. Step 2: Convert to fraction form
    140,357.44/193,732.32 = 86,651.20/x
  3. Step 3: Cross multiply
    140,357.44x = 193,732.32 × 86,651.20
  4. Step 4: Simplify right side
    140,357.44x = 16,787,138,006.78
  5. Step 5: Solve for x
    x = 16,787,138,006.78/140,357.44
  6. Step 6: Final answer
    x = 119,602.77

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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.