Home / 115,963.88-160,037.79-64,973.84

Finding the Fourth Proportional to 115,963.88, 160,037.79 and 64,973.84

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Solution

The fourth proportional to 115,963.88, 160,037.79 and 64,973.84 is: 89,668.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,963.88 : 160,037.79 = 64,973.84 : x
  2. Step 2: Convert to fraction form
    115,963.88/160,037.79 = 64,973.84/x
  3. Step 3: Cross multiply
    115,963.88x = 160,037.79 × 64,973.84
  4. Step 4: Simplify right side
    115,963.88x = 10,398,269,761.41
  5. Step 5: Solve for x
    x = 10,398,269,761.41/115,963.88
  6. Step 6: Final answer
    x = 89,668.18

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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.