Home / 239,139.55-330,014.69-131,713.30

Finding the Fourth Proportional to 239,139.55, 330,014.69 and 131,713.30

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Solution

The fourth proportional to 239,139.55, 330,014.69 and 131,713.30 is: 181,765.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,139.55 : 330,014.69 = 131,713.30 : x
  2. Step 2: Convert to fraction form
    239,139.55/330,014.69 = 131,713.30/x
  3. Step 3: Cross multiply
    239,139.55x = 330,014.69 × 131,713.30
  4. Step 4: Simplify right side
    239,139.55x = 43,467,323,868.38
  5. Step 5: Solve for x
    x = 43,467,323,868.38/239,139.55
  6. Step 6: Final answer
    x = 181,765.52

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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.