Home / 154,404.36-231,650.28-79,579.08

Finding the Fourth Proportional to 154,404.36, 231,650.28 and 79,579.08

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Solution

The fourth proportional to 154,404.36, 231,650.28 and 79,579.08 is: 119,391.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,404.36 : 231,650.28 = 79,579.08 : x
  2. Step 2: Convert to fraction form
    154,404.36/231,650.28 = 79,579.08/x
  3. Step 3: Cross multiply
    154,404.36x = 231,650.28 × 79,579.08
  4. Step 4: Simplify right side
    154,404.36x = 18,434,516,164.14
  5. Step 5: Solve for x
    x = 18,434,516,164.14/154,404.36
  6. Step 6: Final answer
    x = 119,391.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.