Home / 205,148.15-307,859.69-72,028.83

Finding the Fourth Proportional to 205,148.15, 307,859.69 and 72,028.83

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Solution

The fourth proportional to 205,148.15, 307,859.69 and 72,028.83 is: 108,091.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,148.15 : 307,859.69 = 72,028.83 : x
  2. Step 2: Convert to fraction form
    205,148.15/307,859.69 = 72,028.83/x
  3. Step 3: Cross multiply
    205,148.15x = 307,859.69 × 72,028.83
  4. Step 4: Simplify right side
    205,148.15x = 22,174,773,274.86
  5. Step 5: Solve for x
    x = 22,174,773,274.86/205,148.15
  6. Step 6: Final answer
    x = 108,091.51

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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.