Home / 113,238.84-169,913.62-80,171.40

Finding the Fourth Proportional to 113,238.84, 169,913.62 and 80,171.40

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Solution

The fourth proportional to 113,238.84, 169,913.62 and 80,171.40 is: 120,296.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,238.84 : 169,913.62 = 80,171.40 : x
  2. Step 2: Convert to fraction form
    113,238.84/169,913.62 = 80,171.40/x
  3. Step 3: Cross multiply
    113,238.84x = 169,913.62 × 80,171.40
  4. Step 4: Simplify right side
    113,238.84x = 13,622,213,531.86
  5. Step 5: Solve for x
    x = 13,622,213,531.86/113,238.84
  6. Step 6: Final answer
    x = 120,296.30

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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.