Home / 158,813.22-219,162.67-87,197.88

Finding the Fourth Proportional to 158,813.22, 219,162.67 and 87,197.88

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Solution

The fourth proportional to 158,813.22, 219,162.67 and 87,197.88 is: 120,333.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,813.22 : 219,162.67 = 87,197.88 : x
  2. Step 2: Convert to fraction form
    158,813.22/219,162.67 = 87,197.88/x
  3. Step 3: Cross multiply
    158,813.22x = 219,162.67 × 87,197.88
  4. Step 4: Simplify right side
    158,813.22x = 19,110,519,815.46
  5. Step 5: Solve for x
    x = 19,110,519,815.46/158,813.22
  6. Step 6: Final answer
    x = 120,333.31

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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.