Home / 120,551.22-180,806.04-31,805.46

Finding the Fourth Proportional to 120,551.22, 180,806.04 and 31,805.46

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Solution

The fourth proportional to 120,551.22, 180,806.04 and 31,805.46 is: 47,702.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,551.22 : 180,806.04 = 31,805.46 : x
  2. Step 2: Convert to fraction form
    120,551.22/180,806.04 = 31,805.46/x
  3. Step 3: Cross multiply
    120,551.22x = 180,806.04 × 31,805.46
  4. Step 4: Simplify right side
    120,551.22x = 5,750,619,272.98
  5. Step 5: Solve for x
    x = 5,750,619,272.98/120,551.22
  6. Step 6: Final answer
    x = 47,702.70

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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.