Home / 121,964.94-182,947.38-80,402.22

Finding the Fourth Proportional to 121,964.94, 182,947.38 and 80,402.22

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Solution

The fourth proportional to 121,964.94, 182,947.38 and 80,402.22 is: 120,603.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,964.94 : 182,947.38 = 80,402.22 : x
  2. Step 2: Convert to fraction form
    121,964.94/182,947.38 = 80,402.22/x
  3. Step 3: Cross multiply
    121,964.94x = 182,947.38 × 80,402.22
  4. Step 4: Simplify right side
    121,964.94x = 14,709,375,495.18
  5. Step 5: Solve for x
    x = 14,709,375,495.18/121,964.94
  6. Step 6: Final answer
    x = 120,603.31

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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.