Home / 158,426.93-218,625.72-86,805.38

Finding the Fourth Proportional to 158,426.93, 218,625.72 and 86,805.38

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Solution

The fourth proportional to 158,426.93, 218,625.72 and 86,805.38 is: 119,789.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,426.93 : 218,625.72 = 86,805.38 : x
  2. Step 2: Convert to fraction form
    158,426.93/218,625.72 = 86,805.38/x
  3. Step 3: Cross multiply
    158,426.93x = 218,625.72 × 86,805.38
  4. Step 4: Simplify right side
    158,426.93x = 18,977,888,702.37
  5. Step 5: Solve for x
    x = 18,977,888,702.37/158,426.93
  6. Step 6: Final answer
    x = 119,789.54

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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.