Home / 209,553.55-314,377.20-76,433.81

Finding the Fourth Proportional to 209,553.55, 314,377.20 and 76,433.81

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Solution

The fourth proportional to 209,553.55, 314,377.20 and 76,433.81 is: 114,667.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,553.55 : 314,377.20 = 76,433.81 : x
  2. Step 2: Convert to fraction form
    209,553.55/314,377.20 = 76,433.81/x
  3. Step 3: Cross multiply
    209,553.55x = 314,377.20 × 76,433.81
  4. Step 4: Simplify right side
    209,553.55x = 24,029,046,731.58
  5. Step 5: Solve for x
    x = 24,029,046,731.58/209,553.55
  6. Step 6: Final answer
    x = 114,667.81

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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.