Home / 103,428.66-155,212.24-44,278.80

Finding the Fourth Proportional to 103,428.66, 155,212.24 and 44,278.80

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Solution

The fourth proportional to 103,428.66, 155,212.24 and 44,278.80 is: 66,447.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,428.66 : 155,212.24 = 44,278.80 : x
  2. Step 2: Convert to fraction form
    103,428.66/155,212.24 = 44,278.80/x
  3. Step 3: Cross multiply
    103,428.66x = 155,212.24 × 44,278.80
  4. Step 4: Simplify right side
    103,428.66x = 6,872,611,732.51
  5. Step 5: Solve for x
    x = 6,872,611,732.51/103,428.66
  6. Step 6: Final answer
    x = 66,447.85

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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.