Home / 129,294.94-193,942.32-40,555.30

Finding the Fourth Proportional to 129,294.94, 193,942.32 and 40,555.30

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Solution

The fourth proportional to 129,294.94, 193,942.32 and 40,555.30 is: 60,832.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,294.94 : 193,942.32 = 40,555.30 : x
  2. Step 2: Convert to fraction form
    129,294.94/193,942.32 = 40,555.30/x
  3. Step 3: Cross multiply
    129,294.94x = 193,942.32 × 40,555.30
  4. Step 4: Simplify right side
    129,294.94x = 7,865,388,970.30
  5. Step 5: Solve for x
    x = 7,865,388,970.30/129,294.94
  6. Step 6: Final answer
    x = 60,832.92

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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.