Home / 91,898.20-137,847.30-83,441.80

Finding the Fourth Proportional to 91,898.20, 137,847.30 and 83,441.80

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Solution

The fourth proportional to 91,898.20, 137,847.30 and 83,441.80 is: 125,162.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,898.20 : 137,847.30 = 83,441.80 : x
  2. Step 2: Convert to fraction form
    91,898.20/137,847.30 = 83,441.80/x
  3. Step 3: Cross multiply
    91,898.20x = 137,847.30 × 83,441.80
  4. Step 4: Simplify right side
    91,898.20x = 11,502,226,837.14
  5. Step 5: Solve for x
    x = 11,502,226,837.14/91,898.20
  6. Step 6: Final answer
    x = 125,162.70

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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.