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Finding the Fourth Proportional to 101,301.60, 139,805.08 and 67,249.92

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Solution

The fourth proportional to 101,301.60, 139,805.08 and 67,249.92 is: 92,810.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,301.60 : 139,805.08 = 67,249.92 : x
  2. Step 2: Convert to fraction form
    101,301.60/139,805.08 = 67,249.92/x
  3. Step 3: Cross multiply
    101,301.60x = 139,805.08 × 67,249.92
  4. Step 4: Simplify right side
    101,301.60x = 9,401,880,445.59
  5. Step 5: Solve for x
    x = 9,401,880,445.59/101,301.60
  6. Step 6: Final answer
    x = 92,810.78

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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.