Home / 159,112.47-219,520.56-98,661.36

Finding the Fourth Proportional to 159,112.47, 219,520.56 and 98,661.36

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Solution

The fourth proportional to 159,112.47, 219,520.56 and 98,661.36 is: 136,118.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,112.47 : 219,520.56 = 98,661.36 : x
  2. Step 2: Convert to fraction form
    159,112.47/219,520.56 = 98,661.36/x
  3. Step 3: Cross multiply
    159,112.47x = 219,520.56 × 98,661.36
  4. Step 4: Simplify right side
    159,112.47x = 21,658,196,997.56
  5. Step 5: Solve for x
    x = 21,658,196,997.56/159,112.47
  6. Step 6: Final answer
    x = 136,118.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.