Home / 243,869.46-365,920.82-86,172.18

Finding the Fourth Proportional to 243,869.46, 365,920.82 and 86,172.18

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Solution

The fourth proportional to 243,869.46, 365,920.82 and 86,172.18 is: 129,299.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,869.46 : 365,920.82 = 86,172.18 : x
  2. Step 2: Convert to fraction form
    243,869.46/365,920.82 = 86,172.18/x
  3. Step 3: Cross multiply
    243,869.46x = 365,920.82 × 86,172.18
  4. Step 4: Simplify right side
    243,869.46x = 31,532,194,766.79
  5. Step 5: Solve for x
    x = 31,532,194,766.79/243,869.46
  6. Step 6: Final answer
    x = 129,299.48

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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.