Home / 230,947.27-318,701.01-128,969.89

Finding the Fourth Proportional to 230,947.27, 318,701.01 and 128,969.89

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Solution

The fourth proportional to 230,947.27, 318,701.01 and 128,969.89 is: 177,974.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,947.27 : 318,701.01 = 128,969.89 : x
  2. Step 2: Convert to fraction form
    230,947.27/318,701.01 = 128,969.89/x
  3. Step 3: Cross multiply
    230,947.27x = 318,701.01 × 128,969.89
  4. Step 4: Simplify right side
    230,947.27x = 41,102,833,889.47
  5. Step 5: Solve for x
    x = 41,102,833,889.47/230,947.27
  6. Step 6: Final answer
    x = 177,974.97

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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.