Home / 140,196.38-193,474.32-76,534.66

Finding the Fourth Proportional to 140,196.38, 193,474.32 and 76,534.66

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Solution

The fourth proportional to 140,196.38, 193,474.32 and 76,534.66 is: 105,619.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,196.38 : 193,474.32 = 76,534.66 : x
  2. Step 2: Convert to fraction form
    140,196.38/193,474.32 = 76,534.66/x
  3. Step 3: Cross multiply
    140,196.38x = 193,474.32 × 76,534.66
  4. Step 4: Simplify right side
    140,196.38x = 14,807,490,332.56
  5. Step 5: Solve for x
    x = 14,807,490,332.56/140,196.38
  6. Step 6: Final answer
    x = 105,619.63

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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.