Home / 138,973.68-208,739.49-82,923.18

Finding the Fourth Proportional to 138,973.68, 208,739.49 and 82,923.18

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Solution

The fourth proportional to 138,973.68, 208,739.49 and 82,923.18 is: 124,551.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,973.68 : 208,739.49 = 82,923.18 : x
  2. Step 2: Convert to fraction form
    138,973.68/208,739.49 = 82,923.18/x
  3. Step 3: Cross multiply
    138,973.68x = 208,739.49 × 82,923.18
  4. Step 4: Simplify right side
    138,973.68x = 17,309,342,302.38
  5. Step 5: Solve for x
    x = 17,309,342,302.38/138,973.68
  6. Step 6: Final answer
    x = 124,551.23

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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.