Home / 286,610.43-429,916.68-86,932.56

Finding the Fourth Proportional to 286,610.43, 429,916.68 and 86,932.56

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Solution

The fourth proportional to 286,610.43, 429,916.68 and 86,932.56 is: 130,399.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,610.43 : 429,916.68 = 86,932.56 : x
  2. Step 2: Convert to fraction form
    286,610.43/429,916.68 = 86,932.56/x
  3. Step 3: Cross multiply
    286,610.43x = 429,916.68 × 86,932.56
  4. Step 4: Simplify right side
    286,610.43x = 37,373,757,579.10
  5. Step 5: Solve for x
    x = 37,373,757,579.10/286,610.43
  6. Step 6: Final answer
    x = 130,399.15

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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.