Home / 155,139.45-232,709.18-109,868.55

Finding the Fourth Proportional to 155,139.45, 232,709.18 and 109,868.55

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Solution

The fourth proportional to 155,139.45, 232,709.18 and 109,868.55 is: 164,802.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,139.45 : 232,709.18 = 109,868.55 : x
  2. Step 2: Convert to fraction form
    155,139.45/232,709.18 = 109,868.55/x
  3. Step 3: Cross multiply
    155,139.45x = 232,709.18 × 109,868.55
  4. Step 4: Simplify right side
    155,139.45x = 25,567,419,628.95
  5. Step 5: Solve for x
    x = 25,567,419,628.95/155,139.45
  6. Step 6: Final answer
    x = 164,802.83

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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.