Home / 143,814.51-198,470.77-80,152.76

Finding the Fourth Proportional to 143,814.51, 198,470.77 and 80,152.76

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Solution

The fourth proportional to 143,814.51, 198,470.77 and 80,152.76 is: 110,614.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,814.51 : 198,470.77 = 80,152.76 : x
  2. Step 2: Convert to fraction form
    143,814.51/198,470.77 = 80,152.76/x
  3. Step 3: Cross multiply
    143,814.51x = 198,470.77 × 80,152.76
  4. Step 4: Simplify right side
    143,814.51x = 15,907,979,002.47
  5. Step 5: Solve for x
    x = 15,907,979,002.47/143,814.51
  6. Step 6: Final answer
    x = 110,614.57

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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.