Home / 204,020.60-306,030.90-137,665.40

Finding the Fourth Proportional to 204,020.60, 306,030.90 and 137,665.40

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Solution

The fourth proportional to 204,020.60, 306,030.90 and 137,665.40 is: 206,498.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,020.60 : 306,030.90 = 137,665.40 : x
  2. Step 2: Convert to fraction form
    204,020.60/306,030.90 = 137,665.40/x
  3. Step 3: Cross multiply
    204,020.60x = 306,030.90 × 137,665.40
  4. Step 4: Simplify right side
    204,020.60x = 42,129,866,260.86
  5. Step 5: Solve for x
    x = 42,129,866,260.86/204,020.60
  6. Step 6: Final answer
    x = 206,498.10

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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.