Home / 132,171.60-197,998.20-79,424.40

Finding the Fourth Proportional to 132,171.60, 197,998.20 and 79,424.40

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Solution

The fourth proportional to 132,171.60, 197,998.20 and 79,424.40 is: 118,980.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,171.60 : 197,998.20 = 79,424.40 : x
  2. Step 2: Convert to fraction form
    132,171.60/197,998.20 = 79,424.40/x
  3. Step 3: Cross multiply
    132,171.60x = 197,998.20 × 79,424.40
  4. Step 4: Simplify right side
    132,171.60x = 15,725,888,236.08
  5. Step 5: Solve for x
    x = 15,725,888,236.08/132,171.60
  6. Step 6: Final answer
    x = 118,980.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.