Home / 123,575.11-170,533.92-66,986.49

Finding the Fourth Proportional to 123,575.11, 170,533.92 and 66,986.49

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Solution

The fourth proportional to 123,575.11, 170,533.92 and 66,986.49 is: 92,441.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,575.11 : 170,533.92 = 66,986.49 : x
  2. Step 2: Convert to fraction form
    123,575.11/170,533.92 = 66,986.49/x
  3. Step 3: Cross multiply
    123,575.11x = 170,533.92 × 66,986.49
  4. Step 4: Simplify right side
    123,575.11x = 11,423,468,726.74
  5. Step 5: Solve for x
    x = 11,423,468,726.74/123,575.11
  6. Step 6: Final answer
    x = 92,441.50

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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.