Home / 254,578.29-381,916.70-86,126.07

Finding the Fourth Proportional to 254,578.29, 381,916.70 and 86,126.07

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Solution

The fourth proportional to 254,578.29, 381,916.70 and 86,126.07 is: 129,205.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,578.29 : 381,916.70 = 86,126.07 : x
  2. Step 2: Convert to fraction form
    254,578.29/381,916.70 = 86,126.07/x
  3. Step 3: Cross multiply
    254,578.29x = 381,916.70 × 86,126.07
  4. Step 4: Simplify right side
    254,578.29x = 32,892,984,007.74
  5. Step 5: Solve for x
    x = 32,892,984,007.74/254,578.29
  6. Step 6: Final answer
    x = 129,205.77

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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.