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Finding the Fourth Proportional to 102,753.55, 154,128.96 and 27,880.69

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Solution

The fourth proportional to 102,753.55, 154,128.96 and 27,880.69 is: 41,820.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,753.55 : 154,128.96 = 27,880.69 : x
  2. Step 2: Convert to fraction form
    102,753.55/154,128.96 = 27,880.69/x
  3. Step 3: Cross multiply
    102,753.55x = 154,128.96 × 27,880.69
  4. Step 4: Simplify right side
    102,753.55x = 4,297,221,753.78
  5. Step 5: Solve for x
    x = 4,297,221,753.78/102,753.55
  6. Step 6: Final answer
    x = 41,820.66

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1.5x scale

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.