Home / 132,420.25-182,755.17-78,704.74

Finding the Fourth Proportional to 132,420.25, 182,755.17 and 78,704.74

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Solution

The fourth proportional to 132,420.25, 182,755.17 and 78,704.74 is: 108,621.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,420.25 : 182,755.17 = 78,704.74 : x
  2. Step 2: Convert to fraction form
    132,420.25/182,755.17 = 78,704.74/x
  3. Step 3: Cross multiply
    132,420.25x = 182,755.17 × 78,704.74
  4. Step 4: Simplify right side
    132,420.25x = 14,383,698,138.51
  5. Step 5: Solve for x
    x = 14,383,698,138.51/132,420.25
  6. Step 6: Final answer
    x = 108,621.59

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1.5x scale

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.