Home / 90,763.07-136,043.71-68,504.27

Finding the Fourth Proportional to 90,763.07, 136,043.71 and 68,504.27

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Solution

The fourth proportional to 90,763.07, 136,043.71 and 68,504.27 is: 102,680.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,763.07 : 136,043.71 = 68,504.27 : x
  2. Step 2: Convert to fraction form
    90,763.07/136,043.71 = 68,504.27/x
  3. Step 3: Cross multiply
    90,763.07x = 136,043.71 × 68,504.27
  4. Step 4: Simplify right side
    90,763.07x = 9,319,574,190.16
  5. Step 5: Solve for x
    x = 9,319,574,190.16/90,763.07
  6. Step 6: Final answer
    x = 102,680.25

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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.