Home / 226,712.20-340,068.30-77,121.40

Finding the Fourth Proportional to 226,712.20, 340,068.30 and 77,121.40

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Solution

The fourth proportional to 226,712.20, 340,068.30 and 77,121.40 is: 115,682.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,712.20 : 340,068.30 = 77,121.40 : x
  2. Step 2: Convert to fraction form
    226,712.20/340,068.30 = 77,121.40/x
  3. Step 3: Cross multiply
    226,712.20x = 340,068.30 × 77,121.40
  4. Step 4: Simplify right side
    226,712.20x = 26,226,543,391.62
  5. Step 5: Solve for x
    x = 26,226,543,391.62/226,712.20
  6. Step 6: Final answer
    x = 115,682.10

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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.