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Finding the Fourth Proportional to 109,137.56, 150,593.30 and 61,402.64

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Solution

The fourth proportional to 109,137.56, 150,593.30 and 61,402.64 is: 84,726.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,137.56 : 150,593.30 = 61,402.64 : x
  2. Step 2: Convert to fraction form
    109,137.56/150,593.30 = 61,402.64/x
  3. Step 3: Cross multiply
    109,137.56x = 150,593.30 × 61,402.64
  4. Step 4: Simplify right side
    109,137.56x = 9,246,826,186.31
  5. Step 5: Solve for x
    x = 9,246,826,186.31/109,137.56
  6. Step 6: Final answer
    x = 84,726.34

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1.5x scale

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.