Home / 159,081.90-219,522.87-91,098.78

Finding the Fourth Proportional to 159,081.90, 219,522.87 and 91,098.78

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Solution

The fourth proportional to 159,081.90, 219,522.87 and 91,098.78 is: 125,710.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,081.90 : 219,522.87 = 91,098.78 : x
  2. Step 2: Convert to fraction form
    159,081.90/219,522.87 = 91,098.78/x
  3. Step 3: Cross multiply
    159,081.90x = 219,522.87 × 91,098.78
  4. Step 4: Simplify right side
    159,081.90x = 19,998,265,639.10
  5. Step 5: Solve for x
    x = 19,998,265,639.10/159,081.90
  6. Step 6: Final answer
    x = 125,710.50

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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.