Home / 158,087.52-218,159.19-86,468.94

Finding the Fourth Proportional to 158,087.52, 218,159.19 and 86,468.94

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Solution

The fourth proportional to 158,087.52, 218,159.19 and 86,468.94 is: 119,326.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,087.52 : 218,159.19 = 86,468.94 : x
  2. Step 2: Convert to fraction form
    158,087.52/218,159.19 = 86,468.94/x
  3. Step 3: Cross multiply
    158,087.52x = 218,159.19 × 86,468.94
  4. Step 4: Simplify right side
    158,087.52x = 18,863,993,910.56
  5. Step 5: Solve for x
    x = 18,863,993,910.56/158,087.52
  6. Step 6: Final answer
    x = 119,326.27

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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.