Home / 158,389.92-218,577.60-86,772.24

Finding the Fourth Proportional to 158,389.92, 218,577.60 and 86,772.24

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Solution

The fourth proportional to 158,389.92, 218,577.60 and 86,772.24 is: 119,745.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,389.92 : 218,577.60 = 86,772.24 : x
  2. Step 2: Convert to fraction form
    158,389.92/218,577.60 = 86,772.24/x
  3. Step 3: Cross multiply
    158,389.92x = 218,577.60 × 86,772.24
  4. Step 4: Simplify right side
    158,389.92x = 18,966,467,965.82
  5. Step 5: Solve for x
    x = 18,966,467,965.82/158,389.92
  6. Step 6: Final answer
    x = 119,745.42

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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.