Home / 239,316.60-358,905.76-81,541.56

Finding the Fourth Proportional to 239,316.60, 358,905.76 and 81,541.56

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Solution

The fourth proportional to 239,316.60, 358,905.76 and 81,541.56 is: 122,288.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,316.60 : 358,905.76 = 81,541.56 : x
  2. Step 2: Convert to fraction form
    239,316.60/358,905.76 = 81,541.56/x
  3. Step 3: Cross multiply
    239,316.60x = 358,905.76 × 81,541.56
  4. Step 4: Simplify right side
    239,316.60x = 29,265,735,563.39
  5. Step 5: Solve for x
    x = 29,265,735,563.39/239,316.60
  6. Step 6: Final answer
    x = 122,288.78

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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.