Home / 138,609.03-207,881.75-38,776.26

Finding the Fourth Proportional to 138,609.03, 207,881.75 and 38,776.26

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Solution

The fourth proportional to 138,609.03, 207,881.75 and 38,776.26 is: 58,155.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,609.03 : 207,881.75 = 38,776.26 : x
  2. Step 2: Convert to fraction form
    138,609.03/207,881.75 = 38,776.26/x
  3. Step 3: Cross multiply
    138,609.03x = 207,881.75 × 38,776.26
  4. Step 4: Simplify right side
    138,609.03x = 8,060,876,593.37
  5. Step 5: Solve for x
    x = 8,060,876,593.37/138,609.03
  6. Step 6: Final answer
    x = 58,155.49

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1.5x scale

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.