Home / 115,836.37-159,851.94-64,849.20

Finding the Fourth Proportional to 115,836.37, 159,851.94 and 64,849.20

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Solution

The fourth proportional to 115,836.37, 159,851.94 and 64,849.20 is: 89,490.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,836.37 : 159,851.94 = 64,849.20 : x
  2. Step 2: Convert to fraction form
    115,836.37/159,851.94 = 64,849.20/x
  3. Step 3: Cross multiply
    115,836.37x = 159,851.94 × 64,849.20
  4. Step 4: Simplify right side
    115,836.37x = 10,366,270,427.45
  5. Step 5: Solve for x
    x = 10,366,270,427.45/115,836.37
  6. Step 6: Final answer
    x = 89,490.64

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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.