Home / 239,154.12-330,029.10-131,724.36

Finding the Fourth Proportional to 239,154.12, 330,029.10 and 131,724.36

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Solution

The fourth proportional to 239,154.12, 330,029.10 and 131,724.36 is: 181,777.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,154.12 : 330,029.10 = 131,724.36 : x
  2. Step 2: Convert to fraction form
    239,154.12/330,029.10 = 131,724.36/x
  3. Step 3: Cross multiply
    239,154.12x = 330,029.10 × 131,724.36
  4. Step 4: Simplify right side
    239,154.12x = 43,472,871,978.88
  5. Step 5: Solve for x
    x = 43,472,871,978.88/239,154.12
  6. Step 6: Final answer
    x = 181,777.64

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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.