Home / 158,317.92-218,467.80-90,338.04

Finding the Fourth Proportional to 158,317.92, 218,467.80 and 90,338.04

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Solution

The fourth proportional to 158,317.92, 218,467.80 and 90,338.04 is: 124,660.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,317.92 : 218,467.80 = 90,338.04 : x
  2. Step 2: Convert to fraction form
    158,317.92/218,467.80 = 90,338.04/x
  3. Step 3: Cross multiply
    158,317.92x = 218,467.80 × 90,338.04
  4. Step 4: Simplify right side
    158,317.92x = 19,735,952,855.11
  5. Step 5: Solve for x
    x = 19,735,952,855.11/158,317.92
  6. Step 6: Final answer
    x = 124,660.26

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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.