Home / 120,557.28-180,777.60-41,643.84

Finding the Fourth Proportional to 120,557.28, 180,777.60 and 41,643.84

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Solution

The fourth proportional to 120,557.28, 180,777.60 and 41,643.84 is: 62,445.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,557.28 : 180,777.60 = 41,643.84 : x
  2. Step 2: Convert to fraction form
    120,557.28/180,777.60 = 41,643.84/x
  3. Step 3: Cross multiply
    120,557.28x = 180,777.60 × 41,643.84
  4. Step 4: Simplify right side
    120,557.28x = 7,528,273,449.98
  5. Step 5: Solve for x
    x = 7,528,273,449.98/120,557.28
  6. Step 6: Final answer
    x = 62,445.61

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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.