Home / 201,541.89-278,139.60-115,527.54

Finding the Fourth Proportional to 201,541.89, 278,139.60 and 115,527.54

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Solution

The fourth proportional to 201,541.89, 278,139.60 and 115,527.54 is: 159,434.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,541.89 : 278,139.60 = 115,527.54 : x
  2. Step 2: Convert to fraction form
    201,541.89/278,139.60 = 115,527.54/x
  3. Step 3: Cross multiply
    201,541.89x = 278,139.60 × 115,527.54
  4. Step 4: Simplify right side
    201,541.89x = 32,132,783,764.58
  5. Step 5: Solve for x
    x = 32,132,783,764.58/201,541.89
  6. Step 6: Final answer
    x = 159,434.76

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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.