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Finding the Fourth Proportional to 102,753.50, 154,130.25 and 28,881.50

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Solution

The fourth proportional to 102,753.50, 154,130.25 and 28,881.50 is: 43,322.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,753.50 : 154,130.25 = 28,881.50 : x
  2. Step 2: Convert to fraction form
    102,753.50/154,130.25 = 28,881.50/x
  3. Step 3: Cross multiply
    102,753.50x = 154,130.25 × 28,881.50
  4. Step 4: Simplify right side
    102,753.50x = 4,451,512,815.38
  5. Step 5: Solve for x
    x = 4,451,512,815.38/102,753.50
  6. Step 6: Final answer
    x = 43,322.25

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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.