Home / 99,965.26-137,955.77-54,646.32

Finding the Fourth Proportional to 99,965.26, 137,955.77 and 54,646.32

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Solution

The fourth proportional to 99,965.26, 137,955.77 and 54,646.32 is: 75,413.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,965.26 : 137,955.77 = 54,646.32 : x
  2. Step 2: Convert to fraction form
    99,965.26/137,955.77 = 54,646.32/x
  3. Step 3: Cross multiply
    99,965.26x = 137,955.77 × 54,646.32
  4. Step 4: Simplify right side
    99,965.26x = 7,538,775,153.27
  5. Step 5: Solve for x
    x = 7,538,775,153.27/99,965.26
  6. Step 6: Final answer
    x = 75,413.95

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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.