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Finding the Fourth Proportional to 102,887.80, 154,331.70 and 32,774.20

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Solution

The fourth proportional to 102,887.80, 154,331.70 and 32,774.20 is: 49,161.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,887.80 : 154,331.70 = 32,774.20 : x
  2. Step 2: Convert to fraction form
    102,887.80/154,331.70 = 32,774.20/x
  3. Step 3: Cross multiply
    102,887.80x = 154,331.70 × 32,774.20
  4. Step 4: Simplify right side
    102,887.80x = 5,058,098,002.14
  5. Step 5: Solve for x
    x = 5,058,098,002.14/102,887.80
  6. Step 6: Final answer
    x = 49,161.30

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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.