Home / 136,516.40-204,774.60-91,998.80

Finding the Fourth Proportional to 136,516.40, 204,774.60 and 91,998.80

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Solution

The fourth proportional to 136,516.40, 204,774.60 and 91,998.80 is: 137,998.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,516.40 : 204,774.60 = 91,998.80 : x
  2. Step 2: Convert to fraction form
    136,516.40/204,774.60 = 91,998.80/x
  3. Step 3: Cross multiply
    136,516.40x = 204,774.60 × 91,998.80
  4. Step 4: Simplify right side
    136,516.40x = 18,839,017,470.48
  5. Step 5: Solve for x
    x = 18,839,017,470.48/136,516.40
  6. Step 6: Final answer
    x = 137,998.20

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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.