Home / 91,794.40-137,983.20-86,545.60

Finding the Fourth Proportional to 91,794.40, 137,983.20 and 86,545.60

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Solution

The fourth proportional to 91,794.40, 137,983.20 and 86,545.60 is: 130,093.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,794.40 : 137,983.20 = 86,545.60 : x
  2. Step 2: Convert to fraction form
    91,794.40/137,983.20 = 86,545.60/x
  3. Step 3: Cross multiply
    91,794.40x = 137,983.20 × 86,545.60
  4. Step 4: Simplify right side
    91,794.40x = 11,941,838,833.92
  5. Step 5: Solve for x
    x = 11,941,838,833.92/91,794.40
  6. Step 6: Final answer
    x = 130,093.33

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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.