Home / 120,542.22-180,792.67-31,796.60

Finding the Fourth Proportional to 120,542.22, 180,792.67 and 31,796.60

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Solution

The fourth proportional to 120,542.22, 180,792.67 and 31,796.60 is: 47,689.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,542.22 : 180,792.67 = 31,796.60 : x
  2. Step 2: Convert to fraction form
    120,542.22/180,792.67 = 31,796.60/x
  3. Step 3: Cross multiply
    120,542.22x = 180,792.67 × 31,796.60
  4. Step 4: Simplify right side
    120,542.22x = 5,748,592,210.92
  5. Step 5: Solve for x
    x = 5,748,592,210.92/120,542.22
  6. Step 6: Final answer
    x = 47,689.45

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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.