Home / 132,079.68-182,257.74-78,355.62

Finding the Fourth Proportional to 132,079.68, 182,257.74 and 78,355.62

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Solution

The fourth proportional to 132,079.68, 182,257.74 and 78,355.62 is: 108,123.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,079.68 : 182,257.74 = 78,355.62 : x
  2. Step 2: Convert to fraction form
    132,079.68/182,257.74 = 78,355.62/x
  3. Step 3: Cross multiply
    132,079.68x = 182,257.74 × 78,355.62
  4. Step 4: Simplify right side
    132,079.68x = 14,280,918,217.50
  5. Step 5: Solve for x
    x = 14,280,918,217.50/132,079.68
  6. Step 6: Final answer
    x = 108,123.51

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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.