Home / 132,385.10-182,695.37-81,427.73

Finding the Fourth Proportional to 132,385.10, 182,695.37 and 81,427.73

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Solution

The fourth proportional to 132,385.10, 182,695.37 and 81,427.73 is: 112,372.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,385.10 : 182,695.37 = 81,427.73 : x
  2. Step 2: Convert to fraction form
    132,385.10/182,695.37 = 81,427.73/x
  3. Step 3: Cross multiply
    132,385.10x = 182,695.37 × 81,427.73
  4. Step 4: Simplify right side
    132,385.10x = 14,876,467,939.99
  5. Step 5: Solve for x
    x = 14,876,467,939.99/132,385.10
  6. Step 6: Final answer
    x = 112,372.68

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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.