Home / 132,740.89-183,181.52-72,311.57

Finding the Fourth Proportional to 132,740.89, 183,181.52 and 72,311.57

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Solution

The fourth proportional to 132,740.89, 183,181.52 and 72,311.57 is: 99,789.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,740.89 : 183,181.52 = 72,311.57 : x
  2. Step 2: Convert to fraction form
    132,740.89/183,181.52 = 72,311.57/x
  3. Step 3: Cross multiply
    132,740.89x = 183,181.52 × 72,311.57
  4. Step 4: Simplify right side
    132,740.89x = 13,246,143,944.92
  5. Step 5: Solve for x
    x = 13,246,143,944.92/132,740.89
  6. Step 6: Final answer
    x = 99,789.48

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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.