Home / 138,154.19-207,240.84-53,886.33

Finding the Fourth Proportional to 138,154.19, 207,240.84 and 53,886.33

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Solution

The fourth proportional to 138,154.19, 207,240.84 and 53,886.33 is: 80,833.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,154.19 : 207,240.84 = 53,886.33 : x
  2. Step 2: Convert to fraction form
    138,154.19/207,240.84 = 53,886.33/x
  3. Step 3: Cross multiply
    138,154.19x = 207,240.84 × 53,886.33
  4. Step 4: Simplify right side
    138,154.19x = 11,167,448,293.72
  5. Step 5: Solve for x
    x = 11,167,448,293.72/138,154.19
  6. Step 6: Final answer
    x = 80,833.22

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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.