Home / 135,188.28-186,573.84-77,829.66

Finding the Fourth Proportional to 135,188.28, 186,573.84 and 77,829.66

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Solution

The fourth proportional to 135,188.28, 186,573.84 and 77,829.66 is: 107,413.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,188.28 : 186,573.84 = 77,829.66 : x
  2. Step 2: Convert to fraction form
    135,188.28/186,573.84 = 77,829.66/x
  3. Step 3: Cross multiply
    135,188.28x = 186,573.84 × 77,829.66
  4. Step 4: Simplify right side
    135,188.28x = 14,520,978,532.09
  5. Step 5: Solve for x
    x = 14,520,978,532.09/135,188.28
  6. Step 6: Final answer
    x = 107,413.00

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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.