Home / 138,064.09-207,065.14-53,795.33

Finding the Fourth Proportional to 138,064.09, 207,065.14 and 53,795.33

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Solution

The fourth proportional to 138,064.09, 207,065.14 and 53,795.33 is: 80,680.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,064.09 : 207,065.14 = 53,795.33 : x
  2. Step 2: Convert to fraction form
    138,064.09/207,065.14 = 53,795.33/x
  3. Step 3: Cross multiply
    138,064.09x = 207,065.14 × 53,795.33
  4. Step 4: Simplify right side
    138,064.09x = 11,139,137,537.80
  5. Step 5: Solve for x
    x = 11,139,137,537.80/138,064.09
  6. Step 6: Final answer
    x = 80,680.92

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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.