Home / 151,558.30-209,145.66-83,578.14

Finding the Fourth Proportional to 151,558.30, 209,145.66 and 83,578.14

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Solution

The fourth proportional to 151,558.30, 209,145.66 and 83,578.14 is: 115,335.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,558.30 : 209,145.66 = 83,578.14 : x
  2. Step 2: Convert to fraction form
    151,558.30/209,145.66 = 83,578.14/x
  3. Step 3: Cross multiply
    151,558.30x = 209,145.66 × 83,578.14
  4. Step 4: Simplify right side
    151,558.30x = 17,480,005,251.87
  5. Step 5: Solve for x
    x = 17,480,005,251.87/151,558.30
  6. Step 6: Final answer
    x = 115,335.19

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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.