Home / 155,915.08-215,163.33-84,295.61

Finding the Fourth Proportional to 155,915.08, 215,163.33 and 84,295.61

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Solution

The fourth proportional to 155,915.08, 215,163.33 and 84,295.61 is: 116,328.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,915.08 : 215,163.33 = 84,295.61 : x
  2. Step 2: Convert to fraction form
    155,915.08/215,163.33 = 84,295.61/x
  3. Step 3: Cross multiply
    155,915.08x = 215,163.33 × 84,295.61
  4. Step 4: Simplify right side
    155,915.08x = 18,137,324,151.98
  5. Step 5: Solve for x
    x = 18,137,324,151.98/155,915.08
  6. Step 6: Final answer
    x = 116,328.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.