Home / 212,419.93-293,147.25-115,619.11

Finding the Fourth Proportional to 212,419.93, 293,147.25 and 115,619.11

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Solution

The fourth proportional to 212,419.93, 293,147.25 and 115,619.11 is: 159,558.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,419.93 : 293,147.25 = 115,619.11 : x
  2. Step 2: Convert to fraction form
    212,419.93/293,147.25 = 115,619.11/x
  3. Step 3: Cross multiply
    212,419.93x = 293,147.25 × 115,619.11
  4. Step 4: Simplify right side
    212,419.93x = 33,893,423,932.29
  5. Step 5: Solve for x
    x = 33,893,423,932.29/212,419.93
  6. Step 6: Final answer
    x = 159,558.58

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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.