Home / 204,031.14-306,147.15-91,790.70

Finding the Fourth Proportional to 204,031.14, 306,147.15 and 91,790.70

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Solution

The fourth proportional to 204,031.14, 306,147.15 and 91,790.70 is: 137,731.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,031.14 : 306,147.15 = 91,790.70 : x
  2. Step 2: Convert to fraction form
    204,031.14/306,147.15 = 91,790.70/x
  3. Step 3: Cross multiply
    204,031.14x = 306,147.15 × 91,790.70
  4. Step 4: Simplify right side
    204,031.14x = 28,101,461,201.51
  5. Step 5: Solve for x
    x = 28,101,461,201.51/204,031.14
  6. Step 6: Final answer
    x = 137,731.24

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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.