Home / 159,112.09-219,576.05-91,135.27

Finding the Fourth Proportional to 159,112.09, 219,576.05 and 91,135.27

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Solution

The fourth proportional to 159,112.09, 219,576.05 and 91,135.27 is: 125,767.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,112.09 : 219,576.05 = 91,135.27 : x
  2. Step 2: Convert to fraction form
    159,112.09/219,576.05 = 91,135.27/x
  3. Step 3: Cross multiply
    159,112.09x = 219,576.05 × 91,135.27
  4. Step 4: Simplify right side
    159,112.09x = 20,011,122,602.28
  5. Step 5: Solve for x
    x = 20,011,122,602.28/159,112.09
  6. Step 6: Final answer
    x = 125,767.45

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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.