Home / 104,781.56-157,084.18-45,572.64

Finding the Fourth Proportional to 104,781.56, 157,084.18 and 45,572.64

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Solution

The fourth proportional to 104,781.56, 157,084.18 and 45,572.64 is: 68,320.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,781.56 : 157,084.18 = 45,572.64 : x
  2. Step 2: Convert to fraction form
    104,781.56/157,084.18 = 45,572.64/x
  3. Step 3: Cross multiply
    104,781.56x = 157,084.18 × 45,572.64
  4. Step 4: Simplify right side
    104,781.56x = 7,158,739,800.03
  5. Step 5: Solve for x
    x = 7,158,739,800.03/104,781.56
  6. Step 6: Final answer
    x = 68,320.61

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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.