Home / 223,977.20-309,088.56-123,375.20

Finding the Fourth Proportional to 223,977.20, 309,088.56 and 123,375.20

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Solution

The fourth proportional to 223,977.20, 309,088.56 and 123,375.20 is: 170,257.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,977.20 : 309,088.56 = 123,375.20 : x
  2. Step 2: Convert to fraction form
    223,977.20/309,088.56 = 123,375.20/x
  3. Step 3: Cross multiply
    223,977.20x = 309,088.56 × 123,375.20
  4. Step 4: Simplify right side
    223,977.20x = 38,133,862,907.71
  5. Step 5: Solve for x
    x = 38,133,862,907.71/223,977.20
  6. Step 6: Final answer
    x = 170,257.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.