Home / 239,157.60-330,039.72-131,728.02

Finding the Fourth Proportional to 239,157.60, 330,039.72 and 131,728.02

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Solution

The fourth proportional to 239,157.60, 330,039.72 and 131,728.02 is: 181,785.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,157.60 : 330,039.72 = 131,728.02 : x
  2. Step 2: Convert to fraction form
    239,157.60/330,039.72 = 131,728.02/x
  3. Step 3: Cross multiply
    239,157.60x = 330,039.72 × 131,728.02
  4. Step 4: Simplify right side
    239,157.60x = 43,475,478,836.95
  5. Step 5: Solve for x
    x = 43,475,478,836.95/239,157.60
  6. Step 6: Final answer
    x = 181,785.90

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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.