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Finding the Fourth Proportional to 134,661.59, 185,835.30 and 74,231.81

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Solution

The fourth proportional to 134,661.59, 185,835.30 and 74,231.81 is: 102,441.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,661.59 : 185,835.30 = 74,231.81 : x
  2. Step 2: Convert to fraction form
    134,661.59/185,835.30 = 74,231.81/x
  3. Step 3: Cross multiply
    134,661.59x = 185,835.30 × 74,231.81
  4. Step 4: Simplify right side
    134,661.59x = 13,794,890,680.89
  5. Step 5: Solve for x
    x = 13,794,890,680.89/134,661.59
  6. Step 6: Final answer
    x = 102,441.17

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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.