Home / 100,680.51-151,019.55-25,800.06

Finding the Fourth Proportional to 100,680.51, 151,019.55 and 25,800.06

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Solution

The fourth proportional to 100,680.51, 151,019.55 and 25,800.06 is: 38,699.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,680.51 : 151,019.55 = 25,800.06 : x
  2. Step 2: Convert to fraction form
    100,680.51/151,019.55 = 25,800.06/x
  3. Step 3: Cross multiply
    100,680.51x = 151,019.55 × 25,800.06
  4. Step 4: Simplify right side
    100,680.51x = 3,896,313,451.17
  5. Step 5: Solve for x
    x = 3,896,313,451.17/100,680.51
  6. Step 6: Final answer
    x = 38,699.78

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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.