Home / 239,129.28-330,013.32-131,699.28

Finding the Fourth Proportional to 239,129.28, 330,013.32 and 131,699.28

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Solution

The fourth proportional to 239,129.28, 330,013.32 and 131,699.28 is: 181,753.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,129.28 : 330,013.32 = 131,699.28 : x
  2. Step 2: Convert to fraction form
    239,129.28/330,013.32 = 131,699.28/x
  3. Step 3: Cross multiply
    239,129.28x = 330,013.32 × 131,699.28
  4. Step 4: Simplify right side
    239,129.28x = 43,462,516,634.41
  5. Step 5: Solve for x
    x = 43,462,516,634.41/239,129.28
  6. Step 6: Final answer
    x = 181,753.22

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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.