Home / 120,837.20-181,212.72-45,937.40

Finding the Fourth Proportional to 120,837.20, 181,212.72 and 45,937.40

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Solution

The fourth proportional to 120,837.20, 181,212.72 and 45,937.40 is: 68,889.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,837.20 : 181,212.72 = 45,937.40 : x
  2. Step 2: Convert to fraction form
    120,837.20/181,212.72 = 45,937.40/x
  3. Step 3: Cross multiply
    120,837.20x = 181,212.72 × 45,937.40
  4. Step 4: Simplify right side
    120,837.20x = 8,324,441,203.73
  5. Step 5: Solve for x
    x = 8,324,441,203.73/120,837.20
  6. Step 6: Final answer
    x = 68,889.72

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1.5x scale

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.