Home / 143,869.86-198,535.84-79,341.82

Finding the Fourth Proportional to 143,869.86, 198,535.84 and 79,341.82

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Solution

The fourth proportional to 143,869.86, 198,535.84 and 79,341.82 is: 109,489.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,869.86 : 198,535.84 = 79,341.82 : x
  2. Step 2: Convert to fraction form
    143,869.86/198,535.84 = 79,341.82/x
  3. Step 3: Cross multiply
    143,869.86x = 198,535.84 × 79,341.82
  4. Step 4: Simplify right side
    143,869.86x = 15,752,194,880.83
  5. Step 5: Solve for x
    x = 15,752,194,880.83/143,869.86
  6. Step 6: Final answer
    x = 109,489.19

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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.