Home / 131,984.15-182,135.75-74,622.48

Finding the Fourth Proportional to 131,984.15, 182,135.75 and 74,622.48

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Solution

The fourth proportional to 131,984.15, 182,135.75 and 74,622.48 is: 102,977.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,984.15 : 182,135.75 = 74,622.48 : x
  2. Step 2: Convert to fraction form
    131,984.15/182,135.75 = 74,622.48/x
  3. Step 3: Cross multiply
    131,984.15x = 182,135.75 × 74,622.48
  4. Step 4: Simplify right side
    131,984.15x = 13,591,421,361.66
  5. Step 5: Solve for x
    x = 13,591,421,361.66/131,984.15
  6. Step 6: Final answer
    x = 102,977.68

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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.