Home / 103,639.07-155,108.68-64,229.33

Finding the Fourth Proportional to 103,639.07, 155,108.68 and 64,229.33

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Solution

The fourth proportional to 103,639.07, 155,108.68 and 64,229.33 is: 96,127.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,639.07 : 155,108.68 = 64,229.33 : x
  2. Step 2: Convert to fraction form
    103,639.07/155,108.68 = 64,229.33/x
  3. Step 3: Cross multiply
    103,639.07x = 155,108.68 × 64,229.33
  4. Step 4: Simplify right side
    103,639.07x = 9,962,526,593.58
  5. Step 5: Solve for x
    x = 9,962,526,593.58/103,639.07
  6. Step 6: Final answer
    x = 96,127.13

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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.