Home / 104,868.45-144,720.66-57,121.68

Finding the Fourth Proportional to 104,868.45, 144,720.66 and 57,121.68

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Solution

The fourth proportional to 104,868.45, 144,720.66 and 57,121.68 is: 78,829.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,868.45 : 144,720.66 = 57,121.68 : x
  2. Step 2: Convert to fraction form
    104,868.45/144,720.66 = 57,121.68/x
  3. Step 3: Cross multiply
    104,868.45x = 144,720.66 × 57,121.68
  4. Step 4: Simplify right side
    104,868.45x = 8,266,687,229.91
  5. Step 5: Solve for x
    x = 8,266,687,229.91/104,868.45
  6. Step 6: Final answer
    x = 78,829.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.