Home / 99,413.46-137,241.36-76,701.42

Finding the Fourth Proportional to 99,413.46, 137,241.36 and 76,701.42

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Solution

The fourth proportional to 99,413.46, 137,241.36 and 76,701.42 is: 105,887.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,413.46 : 137,241.36 = 76,701.42 : x
  2. Step 2: Convert to fraction form
    99,413.46/137,241.36 = 76,701.42/x
  3. Step 3: Cross multiply
    99,413.46x = 137,241.36 × 76,701.42
  4. Step 4: Simplify right side
    99,413.46x = 10,526,607,194.73
  5. Step 5: Solve for x
    x = 10,526,607,194.73/99,413.46
  6. Step 6: Final answer
    x = 105,887.14

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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.