Home / 120,837.70-181,170.15-54,223.30

Finding the Fourth Proportional to 120,837.70, 181,170.15 and 54,223.30

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Solution

The fourth proportional to 120,837.70, 181,170.15 and 54,223.30 is: 81,296.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,837.70 : 181,170.15 = 54,223.30 : x
  2. Step 2: Convert to fraction form
    120,837.70/181,170.15 = 54,223.30/x
  3. Step 3: Cross multiply
    120,837.70x = 181,170.15 × 54,223.30
  4. Step 4: Simplify right side
    120,837.70x = 9,823,643,394.50
  5. Step 5: Solve for x
    x = 9,823,643,394.50/120,837.70
  6. Step 6: Final answer
    x = 81,296.18

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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.