Home / 121,464.95-167,621.18-67,749.92

Finding the Fourth Proportional to 121,464.95, 167,621.18 and 67,749.92

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Solution

The fourth proportional to 121,464.95, 167,621.18 and 67,749.92 is: 93,494.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,464.95 : 167,621.18 = 67,749.92 : x
  2. Step 2: Convert to fraction form
    121,464.95/167,621.18 = 67,749.92/x
  3. Step 3: Cross multiply
    121,464.95x = 167,621.18 × 67,749.92
  4. Step 4: Simplify right side
    121,464.95x = 11,356,320,697.20
  5. Step 5: Solve for x
    x = 11,356,320,697.20/121,464.95
  6. Step 6: Final answer
    x = 93,494.63

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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.