Home / 100,873.15-139,202.18-57,859.85

Finding the Fourth Proportional to 100,873.15, 139,202.18 and 57,859.85

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Solution

The fourth proportional to 100,873.15, 139,202.18 and 57,859.85 is: 79,845.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,873.15 : 139,202.18 = 57,859.85 : x
  2. Step 2: Convert to fraction form
    100,873.15/139,202.18 = 57,859.85/x
  3. Step 3: Cross multiply
    100,873.15x = 139,202.18 × 57,859.85
  4. Step 4: Simplify right side
    100,873.15x = 8,054,217,530.15
  5. Step 5: Solve for x
    x = 8,054,217,530.15/100,873.15
  6. Step 6: Final answer
    x = 79,845.01

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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.