Home / 120,908.10-181,232.55-45,999.30

Finding the Fourth Proportional to 120,908.10, 181,232.55 and 45,999.30

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Solution

The fourth proportional to 120,908.10, 181,232.55 and 45,999.30 is: 68,949.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,908.10 : 181,232.55 = 45,999.30 : x
  2. Step 2: Convert to fraction form
    120,908.10/181,232.55 = 45,999.30/x
  3. Step 3: Cross multiply
    120,908.10x = 181,232.55 × 45,999.30
  4. Step 4: Simplify right side
    120,908.10x = 8,336,570,437.22
  5. Step 5: Solve for x
    x = 8,336,570,437.22/120,908.10
  6. Step 6: Final answer
    x = 68,949.64

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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.