Home / 98,857.26-148,960.49-81,711.18

Finding the Fourth Proportional to 98,857.26, 148,960.49 and 81,711.18

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Solution

The fourth proportional to 98,857.26, 148,960.49 and 81,711.18 is: 123,124.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,857.26 : 148,960.49 = 81,711.18 : x
  2. Step 2: Convert to fraction form
    98,857.26/148,960.49 = 81,711.18/x
  3. Step 3: Cross multiply
    98,857.26x = 148,960.49 × 81,711.18
  4. Step 4: Simplify right side
    98,857.26x = 12,171,737,002.72
  5. Step 5: Solve for x
    x = 12,171,737,002.72/98,857.26
  6. Step 6: Final answer
    x = 123,124.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.