Home / 158,958.21-219,359.62-87,338.14

Finding the Fourth Proportional to 158,958.21, 219,359.62 and 87,338.14

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Solution

The fourth proportional to 158,958.21, 219,359.62 and 87,338.14 is: 120,525.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,958.21 : 219,359.62 = 87,338.14 : x
  2. Step 2: Convert to fraction form
    158,958.21/219,359.62 = 87,338.14/x
  3. Step 3: Cross multiply
    158,958.21x = 219,359.62 × 87,338.14
  4. Step 4: Simplify right side
    158,958.21x = 19,158,461,201.91
  5. Step 5: Solve for x
    x = 19,158,461,201.91/158,958.21
  6. Step 6: Final answer
    x = 120,525.14

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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.