Home / 140,975.13-194,543.87-80,545.31

Finding the Fourth Proportional to 140,975.13, 194,543.87 and 80,545.31

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Solution

The fourth proportional to 140,975.13, 194,543.87 and 80,545.31 is: 111,151.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,975.13 : 194,543.87 = 80,545.31 : x
  2. Step 2: Convert to fraction form
    140,975.13/194,543.87 = 80,545.31/x
  3. Step 3: Cross multiply
    140,975.13x = 194,543.87 × 80,545.31
  4. Step 4: Simplify right side
    140,975.13x = 15,669,594,942.30
  5. Step 5: Solve for x
    x = 15,669,594,942.30/140,975.13
  6. Step 6: Final answer
    x = 111,151.48

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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.