Home / 133,835.40-200,688.30-74,608.20

Finding the Fourth Proportional to 133,835.40, 200,688.30 and 74,608.20

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Solution

The fourth proportional to 133,835.40, 200,688.30 and 74,608.20 is: 111,876.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,835.40 : 200,688.30 = 74,608.20 : x
  2. Step 2: Convert to fraction form
    133,835.40/200,688.30 = 74,608.20/x
  3. Step 3: Cross multiply
    133,835.40x = 200,688.30 × 74,608.20
  4. Step 4: Simplify right side
    133,835.40x = 14,972,992,824.06
  5. Step 5: Solve for x
    x = 14,972,992,824.06/133,835.40
  6. Step 6: Final answer
    x = 111,876.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.