Home / 138,609.02-207,935.96-54,323.48

Finding the Fourth Proportional to 138,609.02, 207,935.96 and 54,323.48

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Solution

The fourth proportional to 138,609.02, 207,935.96 and 54,323.48 is: 81,494.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,609.02 : 207,935.96 = 54,323.48 : x
  2. Step 2: Convert to fraction form
    138,609.02/207,935.96 = 54,323.48/x
  3. Step 3: Cross multiply
    138,609.02x = 207,935.96 × 54,323.48
  4. Step 4: Simplify right side
    138,609.02x = 11,295,804,348.49
  5. Step 5: Solve for x
    x = 11,295,804,348.49/138,609.02
  6. Step 6: Final answer
    x = 81,494.00

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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.