Home / 212,091.31-292,691.61-115,301.68

Finding the Fourth Proportional to 212,091.31, 292,691.61 and 115,301.68

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Solution

The fourth proportional to 212,091.31, 292,691.61 and 115,301.68 is: 159,119.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,091.31 : 292,691.61 = 115,301.68 : x
  2. Step 2: Convert to fraction form
    212,091.31/292,691.61 = 115,301.68/x
  3. Step 3: Cross multiply
    212,091.31x = 292,691.61 × 115,301.68
  4. Step 4: Simplify right side
    212,091.31x = 33,747,833,623.18
  5. Step 5: Solve for x
    x = 33,747,833,623.18/212,091.31
  6. Step 6: Final answer
    x = 159,119.36

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1.5x scale

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.