Home / 192,517.42-288,776.63-78,665.24

Finding the Fourth Proportional to 192,517.42, 288,776.63 and 78,665.24

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Solution

The fourth proportional to 192,517.42, 288,776.63 and 78,665.24 is: 117,998.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,517.42 : 288,776.63 = 78,665.24 : x
  2. Step 2: Convert to fraction form
    192,517.42/288,776.63 = 78,665.24/x
  3. Step 3: Cross multiply
    192,517.42x = 288,776.63 × 78,665.24
  4. Step 4: Simplify right side
    192,517.42x = 22,716,681,068.13
  5. Step 5: Solve for x
    x = 22,716,681,068.13/192,517.42
  6. Step 6: Final answer
    x = 117,998.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.