Home / 91,727.40-137,591.10-84,510.30

Finding the Fourth Proportional to 91,727.40, 137,591.10 and 84,510.30

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Solution

The fourth proportional to 91,727.40, 137,591.10 and 84,510.30 is: 126,765.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,727.40 : 137,591.10 = 84,510.30 : x
  2. Step 2: Convert to fraction form
    91,727.40/137,591.10 = 84,510.30/x
  3. Step 3: Cross multiply
    91,727.40x = 137,591.10 × 84,510.30
  4. Step 4: Simplify right side
    91,727.40x = 11,627,865,138.33
  5. Step 5: Solve for x
    x = 11,627,865,138.33/91,727.40
  6. Step 6: Final answer
    x = 126,765.45

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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.