Home / 84,720.20-127,226.10-82,095.80

Finding the Fourth Proportional to 84,720.20, 127,226.10 and 82,095.80

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Solution

The fourth proportional to 84,720.20, 127,226.10 and 82,095.80 is: 123,284.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,720.20 : 127,226.10 = 82,095.80 : x
  2. Step 2: Convert to fraction form
    84,720.20/127,226.10 = 82,095.80/x
  3. Step 3: Cross multiply
    84,720.20x = 127,226.10 × 82,095.80
  4. Step 4: Simplify right side
    84,720.20x = 10,444,728,460.38
  5. Step 5: Solve for x
    x = 10,444,728,460.38/84,720.20
  6. Step 6: Final answer
    x = 123,284.98

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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.