Home / 204,058.15-306,087.23-128,934.70

Finding the Fourth Proportional to 204,058.15, 306,087.23 and 128,934.70

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Solution

The fourth proportional to 204,058.15, 306,087.23 and 128,934.70 is: 193,402.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,058.15 : 306,087.23 = 128,934.70 : x
  2. Step 2: Convert to fraction form
    204,058.15/306,087.23 = 128,934.70/x
  3. Step 3: Cross multiply
    204,058.15x = 306,087.23 × 128,934.70
  4. Step 4: Simplify right side
    204,058.15x = 39,465,265,173.88
  5. Step 5: Solve for x
    x = 39,465,265,173.88/204,058.15
  6. Step 6: Final answer
    x = 193,402.05

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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.