Home / 239,064.40-329,916.13-131,638.28

Finding the Fourth Proportional to 239,064.40, 329,916.13 and 131,638.28

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Solution

The fourth proportional to 239,064.40, 329,916.13 and 131,638.28 is: 181,664.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,064.40 : 329,916.13 = 131,638.28 : x
  2. Step 2: Convert to fraction form
    239,064.40/329,916.13 = 131,638.28/x
  3. Step 3: Cross multiply
    239,064.40x = 329,916.13 × 131,638.28
  4. Step 4: Simplify right side
    239,064.40x = 43,429,589,918.78
  5. Step 5: Solve for x
    x = 43,429,589,918.78/239,064.40
  6. Step 6: Final answer
    x = 181,664.82

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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.