Home / 140,545.28-193,963.01-80,117.35

Finding the Fourth Proportional to 140,545.28, 193,963.01 and 80,117.35

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Solution

The fourth proportional to 140,545.28, 193,963.01 and 80,117.35 is: 110,567.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,545.28 : 193,963.01 = 80,117.35 : x
  2. Step 2: Convert to fraction form
    140,545.28/193,963.01 = 80,117.35/x
  3. Step 3: Cross multiply
    140,545.28x = 193,963.01 × 80,117.35
  4. Step 4: Simplify right side
    140,545.28x = 15,539,801,473.73
  5. Step 5: Solve for x
    x = 15,539,801,473.73/140,545.28
  6. Step 6: Final answer
    x = 110,567.93

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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.