Home / 135,334.08-186,761.40-74,908.89

Finding the Fourth Proportional to 135,334.08, 186,761.40 and 74,908.89

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Solution

The fourth proportional to 135,334.08, 186,761.40 and 74,908.89 is: 103,374.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,334.08 : 186,761.40 = 74,908.89 : x
  2. Step 2: Convert to fraction form
    135,334.08/186,761.40 = 74,908.89/x
  3. Step 3: Cross multiply
    135,334.08x = 186,761.40 × 74,908.89
  4. Step 4: Simplify right side
    135,334.08x = 13,990,089,168.85
  5. Step 5: Solve for x
    x = 13,990,089,168.85/135,334.08
  6. Step 6: Final answer
    x = 103,374.47

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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.