Home / 131,829.62-181,936.04-74,479.46

Finding the Fourth Proportional to 131,829.62, 181,936.04 and 74,479.46

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Solution

The fourth proportional to 131,829.62, 181,936.04 and 74,479.46 is: 102,787.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,829.62 : 181,936.04 = 74,479.46 : x
  2. Step 2: Convert to fraction form
    131,829.62/181,936.04 = 74,479.46/x
  3. Step 3: Cross multiply
    131,829.62x = 181,936.04 × 74,479.46
  4. Step 4: Simplify right side
    131,829.62x = 13,550,496,731.66
  5. Step 5: Solve for x
    x = 13,550,496,731.66/131,829.62
  6. Step 6: Final answer
    x = 102,787.96

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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.