Home / 129,222.96-193,916.56-66,893.52

Finding the Fourth Proportional to 129,222.96, 193,916.56 and 66,893.52

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Solution

The fourth proportional to 129,222.96, 193,916.56 and 66,893.52 is: 100,382.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,222.96 : 193,916.56 = 66,893.52 : x
  2. Step 2: Convert to fraction form
    129,222.96/193,916.56 = 66,893.52/x
  3. Step 3: Cross multiply
    129,222.96x = 193,916.56 × 66,893.52
  4. Step 4: Simplify right side
    129,222.96x = 12,971,761,284.69
  5. Step 5: Solve for x
    x = 12,971,761,284.69/129,222.96
  6. Step 6: Final answer
    x = 100,382.79

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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.