Home / 127,331.80-191,084.10-82,850.20

Finding the Fourth Proportional to 127,331.80, 191,084.10 and 82,850.20

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Solution

The fourth proportional to 127,331.80, 191,084.10 and 82,850.20 is: 124,331.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,331.80 : 191,084.10 = 82,850.20 : x
  2. Step 2: Convert to fraction form
    127,331.80/191,084.10 = 82,850.20/x
  3. Step 3: Cross multiply
    127,331.80x = 191,084.10 × 82,850.20
  4. Step 4: Simplify right side
    127,331.80x = 15,831,355,901.82
  5. Step 5: Solve for x
    x = 15,831,355,901.82/127,331.80
  6. Step 6: Final answer
    x = 124,331.52

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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.