Home / 279,160.32-418,779.09-89,576.12

Finding the Fourth Proportional to 279,160.32, 418,779.09 and 89,576.12

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Solution

The fourth proportional to 279,160.32, 418,779.09 and 89,576.12 is: 134,376.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,160.32 : 418,779.09 = 89,576.12 : x
  2. Step 2: Convert to fraction form
    279,160.32/418,779.09 = 89,576.12/x
  3. Step 3: Cross multiply
    279,160.32x = 418,779.09 × 89,576.12
  4. Step 4: Simplify right side
    279,160.32x = 37,512,606,019.33
  5. Step 5: Solve for x
    x = 37,512,606,019.33/279,160.32
  6. Step 6: Final answer
    x = 134,376.57

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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.