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Finding the Fourth Proportional to 104,999.40, 157,499.10 and 67,601.70

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Solution

The fourth proportional to 104,999.40, 157,499.10 and 67,601.70 is: 101,402.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,999.40 : 157,499.10 = 67,601.70 : x
  2. Step 2: Convert to fraction form
    104,999.40/157,499.10 = 67,601.70/x
  3. Step 3: Cross multiply
    104,999.40x = 157,499.10 × 67,601.70
  4. Step 4: Simplify right side
    104,999.40x = 10,647,206,908.47
  5. Step 5: Solve for x
    x = 10,647,206,908.47/104,999.40
  6. Step 6: Final answer
    x = 101,402.55

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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.