Home / 231,005.08-318,786.06-130,402.36

Finding the Fourth Proportional to 231,005.08, 318,786.06 and 130,402.36

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Solution

The fourth proportional to 231,005.08, 318,786.06 and 130,402.36 is: 179,954.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,005.08 : 318,786.06 = 130,402.36 : x
  2. Step 2: Convert to fraction form
    231,005.08/318,786.06 = 130,402.36/x
  3. Step 3: Cross multiply
    231,005.08x = 318,786.06 × 130,402.36
  4. Step 4: Simplify right side
    231,005.08x = 41,570,454,559.10
  5. Step 5: Solve for x
    x = 41,570,454,559.10/231,005.08
  6. Step 6: Final answer
    x = 179,954.72

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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.