Home / 135,949.80-187,640.71-75,541.20

Finding the Fourth Proportional to 135,949.80, 187,640.71 and 75,541.20

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Solution

The fourth proportional to 135,949.80, 187,640.71 and 75,541.20 is: 104,263.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,949.80 : 187,640.71 = 75,541.20 : x
  2. Step 2: Convert to fraction form
    135,949.80/187,640.71 = 75,541.20/x
  3. Step 3: Cross multiply
    135,949.80x = 187,640.71 × 75,541.20
  4. Step 4: Simplify right side
    135,949.80x = 14,174,604,402.25
  5. Step 5: Solve for x
    x = 14,174,604,402.25/135,949.80
  6. Step 6: Final answer
    x = 104,263.52

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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.