Home / 137,732.19-206,155.40-71,081.54

Finding the Fourth Proportional to 137,732.19, 206,155.40 and 71,081.54

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Solution

The fourth proportional to 137,732.19, 206,155.40 and 71,081.54 is: 106,393.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,732.19 : 206,155.40 = 71,081.54 : x
  2. Step 2: Convert to fraction form
    137,732.19/206,155.40 = 71,081.54/x
  3. Step 3: Cross multiply
    137,732.19x = 206,155.40 × 71,081.54
  4. Step 4: Simplify right side
    137,732.19x = 14,653,842,698.21
  5. Step 5: Solve for x
    x = 14,653,842,698.21/137,732.19
  6. Step 6: Final answer
    x = 106,393.74

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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.