Home / 131,977.46-182,138.56-75,387.62

Finding the Fourth Proportional to 131,977.46, 182,138.56 and 75,387.62

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Solution

The fourth proportional to 131,977.46, 182,138.56 and 75,387.62 is: 104,040.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,977.46 : 182,138.56 = 75,387.62 : x
  2. Step 2: Convert to fraction form
    131,977.46/182,138.56 = 75,387.62/x
  3. Step 3: Cross multiply
    131,977.46x = 182,138.56 × 75,387.62
  4. Step 4: Simplify right side
    131,977.46x = 13,730,992,548.63
  5. Step 5: Solve for x
    x = 13,730,992,548.63/131,977.46
  6. Step 6: Final answer
    x = 104,040.44

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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.