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Finding the Fourth Proportional to 147,880, 204,059.77 and 90,535.49

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Solution

The fourth proportional to 147,880, 204,059.77 and 90,535.49 is: 124,930.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,880 : 204,059.77 = 90,535.49 : x
  2. Step 2: Convert to fraction form
    147,880/204,059.77 = 90,535.49/x
  3. Step 3: Cross multiply
    147,880x = 204,059.77 × 90,535.49
  4. Step 4: Simplify right side
    147,880x = 18,474,651,266.24
  5. Step 5: Solve for x
    x = 18,474,651,266.24/147,880
  6. Step 6: Final answer
    x = 124,930.02

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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.