Home / 98,920.46-136,572.54-68,696.12

Finding the Fourth Proportional to 98,920.46, 136,572.54 and 68,696.12

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Solution

The fourth proportional to 98,920.46, 136,572.54 and 68,696.12 is: 94,843.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,920.46 : 136,572.54 = 68,696.12 : x
  2. Step 2: Convert to fraction form
    98,920.46/136,572.54 = 68,696.12/x
  3. Step 3: Cross multiply
    98,920.46x = 136,572.54 × 68,696.12
  4. Step 4: Simplify right side
    98,920.46x = 9,382,003,596.54
  5. Step 5: Solve for x
    x = 9,382,003,596.54/98,920.46
  6. Step 6: Final answer
    x = 94,843.91

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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.