Home / 140,437.20-193,805.64-83,853.52

Finding the Fourth Proportional to 140,437.20, 193,805.64 and 83,853.52

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Solution

The fourth proportional to 140,437.20, 193,805.64 and 83,853.52 is: 115,719.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,437.20 : 193,805.64 = 83,853.52 : x
  2. Step 2: Convert to fraction form
    140,437.20/193,805.64 = 83,853.52/x
  3. Step 3: Cross multiply
    140,437.20x = 193,805.64 × 83,853.52
  4. Step 4: Simplify right side
    140,437.20x = 16,251,285,109.85
  5. Step 5: Solve for x
    x = 16,251,285,109.85/140,437.20
  6. Step 6: Final answer
    x = 115,719.23

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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.