Home / 210,006.20-314,972.85-76,817.90

Finding the Fourth Proportional to 210,006.20, 314,972.85 and 76,817.90

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Solution

The fourth proportional to 210,006.20, 314,972.85 and 76,817.90 is: 115,213.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,006.20 : 314,972.85 = 76,817.90 : x
  2. Step 2: Convert to fraction form
    210,006.20/314,972.85 = 76,817.90/x
  3. Step 3: Cross multiply
    210,006.20x = 314,972.85 × 76,817.90
  4. Step 4: Simplify right side
    210,006.20x = 24,195,552,894.02
  5. Step 5: Solve for x
    x = 24,195,552,894.02/210,006.20
  6. Step 6: Final answer
    x = 115,213.52

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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.