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Finding the Fourth Proportional to 104,863.56, 157,378.38 and 45,740.75

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Solution

The fourth proportional to 104,863.56, 157,378.38 and 45,740.75 is: 68,647.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,863.56 : 157,378.38 = 45,740.75 : x
  2. Step 2: Convert to fraction form
    104,863.56/157,378.38 = 45,740.75/x
  3. Step 3: Cross multiply
    104,863.56x = 157,378.38 × 45,740.75
  4. Step 4: Simplify right side
    104,863.56x = 7,198,605,061.82
  5. Step 5: Solve for x
    x = 7,198,605,061.82/104,863.56
  6. Step 6: Final answer
    x = 68,647.34

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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.