Home / 123,726.06-185,682.36-90,531.75

Finding the Fourth Proportional to 123,726.06, 185,682.36 and 90,531.75

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Solution

The fourth proportional to 123,726.06, 185,682.36 and 90,531.75 is: 135,865.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,726.06 : 185,682.36 = 90,531.75 : x
  2. Step 2: Convert to fraction form
    123,726.06/185,682.36 = 90,531.75/x
  3. Step 3: Cross multiply
    123,726.06x = 185,682.36 × 90,531.75
  4. Step 4: Simplify right side
    123,726.06x = 16,810,148,994.93
  5. Step 5: Solve for x
    x = 16,810,148,994.93/123,726.06
  6. Step 6: Final answer
    x = 135,865.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.