Home / 159,125.36-219,585.44-87,508.40

Finding the Fourth Proportional to 159,125.36, 219,585.44 and 87,508.40

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Solution

The fourth proportional to 159,125.36, 219,585.44 and 87,508.40 is: 120,757.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,125.36 : 219,585.44 = 87,508.40 : x
  2. Step 2: Convert to fraction form
    159,125.36/219,585.44 = 87,508.40/x
  3. Step 3: Cross multiply
    159,125.36x = 219,585.44 × 87,508.40
  4. Step 4: Simplify right side
    159,125.36x = 19,215,570,517.70
  5. Step 5: Solve for x
    x = 19,215,570,517.70/159,125.36
  6. Step 6: Final answer
    x = 120,757.44

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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.