Home / 239,078.40-329,928.24-131,648.16

Finding the Fourth Proportional to 239,078.40, 329,928.24 and 131,648.16

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Solution

The fourth proportional to 239,078.40, 329,928.24 and 131,648.16 is: 181,674.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,078.40 : 329,928.24 = 131,648.16 : x
  2. Step 2: Convert to fraction form
    239,078.40/329,928.24 = 131,648.16/x
  3. Step 3: Cross multiply
    239,078.40x = 329,928.24 × 131,648.16
  4. Step 4: Simplify right side
    239,078.40x = 43,434,445,728.04
  5. Step 5: Solve for x
    x = 43,434,445,728.04/239,078.40
  6. Step 6: Final answer
    x = 181,674.49

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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.