Home / 135,413.49-186,868.32-74,982.84

Finding the Fourth Proportional to 135,413.49, 186,868.32 and 74,982.84

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Solution

The fourth proportional to 135,413.49, 186,868.32 and 74,982.84 is: 103,475.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,413.49 : 186,868.32 = 74,982.84 : x
  2. Step 2: Convert to fraction form
    135,413.49/186,868.32 = 74,982.84/x
  3. Step 3: Cross multiply
    135,413.49x = 186,868.32 × 74,982.84
  4. Step 4: Simplify right side
    135,413.49x = 14,011,916,405.29
  5. Step 5: Solve for x
    x = 14,011,916,405.29/135,413.49
  6. Step 6: Final answer
    x = 103,475.04

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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.