Home / 126,619.79-189,859.56-51,792.47

Finding the Fourth Proportional to 126,619.79, 189,859.56 and 51,792.47

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Solution

The fourth proportional to 126,619.79, 189,859.56 and 51,792.47 is: 77,660.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,619.79 : 189,859.56 = 51,792.47 : x
  2. Step 2: Convert to fraction form
    126,619.79/189,859.56 = 51,792.47/x
  3. Step 3: Cross multiply
    126,619.79x = 189,859.56 × 51,792.47
  4. Step 4: Simplify right side
    126,619.79x = 9,833,295,565.51
  5. Step 5: Solve for x
    x = 9,833,295,565.51/126,619.79
  6. Step 6: Final answer
    x = 77,660.02

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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.