Home / 158,796.18-219,137.04-87,174.36

Finding the Fourth Proportional to 158,796.18, 219,137.04 and 87,174.36

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Solution

The fourth proportional to 158,796.18, 219,137.04 and 87,174.36 is: 120,299.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,796.18 : 219,137.04 = 87,174.36 : x
  2. Step 2: Convert to fraction form
    158,796.18/219,137.04 = 87,174.36/x
  3. Step 3: Cross multiply
    158,796.18x = 219,137.04 × 87,174.36
  4. Step 4: Simplify right side
    158,796.18x = 19,103,131,214.29
  5. Step 5: Solve for x
    x = 19,103,131,214.29/158,796.18
  6. Step 6: Final answer
    x = 120,299.69

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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.