Home / 121,043.18-167,074.77-80,756.85

Finding the Fourth Proportional to 121,043.18, 167,074.77 and 80,756.85

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Solution

The fourth proportional to 121,043.18, 167,074.77 and 80,756.85 is: 111,467.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,043.18 : 167,074.77 = 80,756.85 : x
  2. Step 2: Convert to fraction form
    121,043.18/167,074.77 = 80,756.85/x
  3. Step 3: Cross multiply
    121,043.18x = 167,074.77 × 80,756.85
  4. Step 4: Simplify right side
    121,043.18x = 13,492,432,139.67
  5. Step 5: Solve for x
    x = 13,492,432,139.67/121,043.18
  6. Step 6: Final answer
    x = 111,467.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.