Home / 103,811.03-155,716.55-59,406.38

Finding the Fourth Proportional to 103,811.03, 155,716.55 and 59,406.38

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Solution

The fourth proportional to 103,811.03, 155,716.55 and 59,406.38 is: 89,109.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,811.03 : 155,716.55 = 59,406.38 : x
  2. Step 2: Convert to fraction form
    103,811.03/155,716.55 = 59,406.38/x
  3. Step 3: Cross multiply
    103,811.03x = 155,716.55 × 59,406.38
  4. Step 4: Simplify right side
    103,811.03x = 9,250,555,465.97
  5. Step 5: Solve for x
    x = 9,250,555,465.97/103,811.03
  6. Step 6: Final answer
    x = 89,109.57

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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.