Home / 132,428.08-182,690.04-78,682.96

Finding the Fourth Proportional to 132,428.08, 182,690.04 and 78,682.96

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Solution

The fourth proportional to 132,428.08, 182,690.04 and 78,682.96 is: 108,546.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,428.08 : 182,690.04 = 78,682.96 : x
  2. Step 2: Convert to fraction form
    132,428.08/182,690.04 = 78,682.96/x
  3. Step 3: Cross multiply
    132,428.08x = 182,690.04 × 78,682.96
  4. Step 4: Simplify right side
    132,428.08x = 14,374,593,109.72
  5. Step 5: Solve for x
    x = 14,374,593,109.72/132,428.08
  6. Step 6: Final answer
    x = 108,546.41

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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.