Home / 99,965.03-137,955.42-54,646.04

Finding the Fourth Proportional to 99,965.03, 137,955.42 and 54,646.04

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Solution

The fourth proportional to 99,965.03, 137,955.42 and 54,646.04 is: 75,413.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,965.03 : 137,955.42 = 54,646.04 : x
  2. Step 2: Convert to fraction form
    99,965.03/137,955.42 = 54,646.04/x
  3. Step 3: Cross multiply
    99,965.03x = 137,955.42 × 54,646.04
  4. Step 4: Simplify right side
    99,965.03x = 7,538,716,709.76
  5. Step 5: Solve for x
    x = 7,538,716,709.76/99,965.03
  6. Step 6: Final answer
    x = 75,413.54

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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.