Home / 158,976.27-219,392.15-87,358.50

Finding the Fourth Proportional to 158,976.27, 219,392.15 and 87,358.50

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Solution

The fourth proportional to 158,976.27, 219,392.15 and 87,358.50 is: 120,557.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,976.27 : 219,392.15 = 87,358.50 : x
  2. Step 2: Convert to fraction form
    158,976.27/219,392.15 = 87,358.50/x
  3. Step 3: Cross multiply
    158,976.27x = 219,392.15 × 87,358.50
  4. Step 4: Simplify right side
    158,976.27x = 19,165,768,698.98
  5. Step 5: Solve for x
    x = 19,165,768,698.98/158,976.27
  6. Step 6: Final answer
    x = 120,557.42

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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.