Home / 212,720.78-293,562.04-115,932.70

Finding the Fourth Proportional to 212,720.78, 293,562.04 and 115,932.70

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Solution

The fourth proportional to 212,720.78, 293,562.04 and 115,932.70 is: 159,991.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,720.78 : 293,562.04 = 115,932.70 : x
  2. Step 2: Convert to fraction form
    212,720.78/293,562.04 = 115,932.70/x
  3. Step 3: Cross multiply
    212,720.78x = 293,562.04 × 115,932.70
  4. Step 4: Simplify right side
    212,720.78x = 34,033,439,100.88
  5. Step 5: Solve for x
    x = 34,033,439,100.88/212,720.78
  6. Step 6: Final answer
    x = 159,991.14

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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.