Home / 132,005.28-182,093.76-78,238.56

Finding the Fourth Proportional to 132,005.28, 182,093.76 and 78,238.56

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Solution

The fourth proportional to 132,005.28, 182,093.76 and 78,238.56 is: 107,925.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,005.28 : 182,093.76 = 78,238.56 : x
  2. Step 2: Convert to fraction form
    132,005.28/182,093.76 = 78,238.56/x
  3. Step 3: Cross multiply
    132,005.28x = 182,093.76 × 78,238.56
  4. Step 4: Simplify right side
    132,005.28x = 14,246,753,567.39
  5. Step 5: Solve for x
    x = 14,246,753,567.39/132,005.28
  6. Step 6: Final answer
    x = 107,925.63

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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.