Home / 140,197.31-193,473.11-76,535.77

Finding the Fourth Proportional to 140,197.31, 193,473.11 and 76,535.77

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Solution

The fourth proportional to 140,197.31, 193,473.11 and 76,535.77 is: 105,619.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,197.31 : 193,473.11 = 76,535.77 : x
  2. Step 2: Convert to fraction form
    140,197.31/193,473.11 = 76,535.77/x
  3. Step 3: Cross multiply
    140,197.31x = 193,473.11 × 76,535.77
  4. Step 4: Simplify right side
    140,197.31x = 14,807,612,581.78
  5. Step 5: Solve for x
    x = 14,807,612,581.78/140,197.31
  6. Step 6: Final answer
    x = 105,619.80

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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.