Home / 136,413.04-188,240.32-75,156.55

Finding the Fourth Proportional to 136,413.04, 188,240.32 and 75,156.55

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Solution

The fourth proportional to 136,413.04, 188,240.32 and 75,156.55 is: 103,710.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,413.04 : 188,240.32 = 75,156.55 : x
  2. Step 2: Convert to fraction form
    136,413.04/188,240.32 = 75,156.55/x
  3. Step 3: Cross multiply
    136,413.04x = 188,240.32 × 75,156.55
  4. Step 4: Simplify right side
    136,413.04x = 14,147,492,928.59
  5. Step 5: Solve for x
    x = 14,147,492,928.59/136,413.04
  6. Step 6: Final answer
    x = 103,710.71

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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.