Home / 239,142.40-330,016.56-131,712.16

Finding the Fourth Proportional to 239,142.40, 330,016.56 and 131,712.16

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Solution

The fourth proportional to 239,142.40, 330,016.56 and 131,712.16 is: 181,762.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,142.40 : 330,016.56 = 131,712.16 : x
  2. Step 2: Convert to fraction form
    239,142.40/330,016.56 = 131,712.16/x
  3. Step 3: Cross multiply
    239,142.40x = 330,016.56 × 131,712.16
  4. Step 4: Simplify right side
    239,142.40x = 43,467,193,953.37
  5. Step 5: Solve for x
    x = 43,467,193,953.37/239,142.40
  6. Step 6: Final answer
    x = 181,762.81

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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.