Home / 84,829.10-127,243.65-82,860.80

Finding the Fourth Proportional to 84,829.10, 127,243.65 and 82,860.80

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Solution

The fourth proportional to 84,829.10, 127,243.65 and 82,860.80 is: 124,291.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,829.10 : 127,243.65 = 82,860.80 : x
  2. Step 2: Convert to fraction form
    84,829.10/127,243.65 = 82,860.80/x
  3. Step 3: Cross multiply
    84,829.10x = 127,243.65 × 82,860.80
  4. Step 4: Simplify right side
    84,829.10x = 10,543,510,633.92
  5. Step 5: Solve for x
    x = 10,543,510,633.92/84,829.10
  6. Step 6: Final answer
    x = 124,291.20

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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.