Home / 132,419.36-182,797.62-78,721.76

Finding the Fourth Proportional to 132,419.36, 182,797.62 and 78,721.76

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Solution

The fourth proportional to 132,419.36, 182,797.62 and 78,721.76 is: 108,671.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,419.36 : 182,797.62 = 78,721.76 : x
  2. Step 2: Convert to fraction form
    132,419.36/182,797.62 = 78,721.76/x
  3. Step 3: Cross multiply
    132,419.36x = 182,797.62 × 78,721.76
  4. Step 4: Simplify right side
    132,419.36x = 14,390,150,370.21
  5. Step 5: Solve for x
    x = 14,390,150,370.21/132,419.36
  6. Step 6: Final answer
    x = 108,671.05

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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.