Home / 239,087.12-329,942.38-131,657.58

Finding the Fourth Proportional to 239,087.12, 329,942.38 and 131,657.58

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Solution

The fourth proportional to 239,087.12, 329,942.38 and 131,657.58 is: 181,688.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,087.12 : 329,942.38 = 131,657.58 : x
  2. Step 2: Convert to fraction form
    239,087.12/329,942.38 = 131,657.58/x
  3. Step 3: Cross multiply
    239,087.12x = 329,942.38 × 131,657.58
  4. Step 4: Simplify right side
    239,087.12x = 43,439,415,290.24
  5. Step 5: Solve for x
    x = 43,439,415,290.24/239,087.12
  6. Step 6: Final answer
    x = 181,688.65

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1.5x scale

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.