Home / 103,628.88-155,344.68-66,083.52

Finding the Fourth Proportional to 103,628.88, 155,344.68 and 66,083.52

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Solution

The fourth proportional to 103,628.88, 155,344.68 and 66,083.52 is: 99,062.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,628.88 : 155,344.68 = 66,083.52 : x
  2. Step 2: Convert to fraction form
    103,628.88/155,344.68 = 66,083.52/x
  3. Step 3: Cross multiply
    103,628.88x = 155,344.68 × 66,083.52
  4. Step 4: Simplify right side
    103,628.88x = 10,265,723,267.67
  5. Step 5: Solve for x
    x = 10,265,723,267.67/103,628.88
  6. Step 6: Final answer
    x = 99,062.38

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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.