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Finding the Fourth Proportional to 135,205.60, 202,808.40 and 87,966.40

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Solution

The fourth proportional to 135,205.60, 202,808.40 and 87,966.40 is: 131,949.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,205.60 : 202,808.40 = 87,966.40 : x
  2. Step 2: Convert to fraction form
    135,205.60/202,808.40 = 87,966.40/x
  3. Step 3: Cross multiply
    135,205.60x = 202,808.40 × 87,966.40
  4. Step 4: Simplify right side
    135,205.60x = 17,840,324,837.76
  5. Step 5: Solve for x
    x = 17,840,324,837.76/135,205.60
  6. Step 6: Final answer
    x = 131,949.60

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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.