Home / 135,436.01-186,839.65-87,704.73

Finding the Fourth Proportional to 135,436.01, 186,839.65 and 87,704.73

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Solution

The fourth proportional to 135,436.01, 186,839.65 and 87,704.73 is: 120,992.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,436.01 : 186,839.65 = 87,704.73 : x
  2. Step 2: Convert to fraction form
    135,436.01/186,839.65 = 87,704.73/x
  3. Step 3: Cross multiply
    135,436.01x = 186,839.65 × 87,704.73
  4. Step 4: Simplify right side
    135,436.01x = 16,386,721,056.54
  5. Step 5: Solve for x
    x = 16,386,721,056.54/135,436.01
  6. Step 6: Final answer
    x = 120,992.35

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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.