Home / 103,720,859.09-143,132,707.01-57,309,919.73

Finding the Fourth Proportional to 103,720,859.09, 143,132,707.01 and 57,309,919.73

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Solution

The fourth proportional to 103,720,859.09, 143,132,707.01 and 57,309,919.73 is: 79,086,540.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,720,859.09 : 143,132,707.01 = 57,309,919.73 : x
  2. Step 2: Convert to fraction form
    103,720,859.09/143,132,707.01 = 57,309,919.73/x
  3. Step 3: Cross multiply
    103,720,859.09x = 143,132,707.01 × 57,309,919.73
  4. Step 4: Simplify right side
    103,720,859.09x = 8,202,923,948,908,319
  5. Step 5: Solve for x
    x = 8,202,923,948,908,319/103,720,859.09
  6. Step 6: Final answer
    x = 79,086,540.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.