Home / 121,500.85-167,670.92-67,782.66

Finding the Fourth Proportional to 121,500.85, 167,670.92 and 67,782.66

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Solution

The fourth proportional to 121,500.85, 167,670.92 and 67,782.66 is: 93,539.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,500.85 : 167,670.92 = 67,782.66 : x
  2. Step 2: Convert to fraction form
    121,500.85/167,670.92 = 67,782.66/x
  3. Step 3: Cross multiply
    121,500.85x = 167,670.92 × 67,782.66
  4. Step 4: Simplify right side
    121,500.85x = 11,365,180,962.25
  5. Step 5: Solve for x
    x = 11,365,180,962.25/121,500.85
  6. Step 6: Final answer
    x = 93,539.93

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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.