Home / 112,907.15-155,818.76-65,163.57

Finding the Fourth Proportional to 112,907.15, 155,818.76 and 65,163.57

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Solution

The fourth proportional to 112,907.15, 155,818.76 and 65,163.57 is: 89,929.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,907.15 : 155,818.76 = 65,163.57 : x
  2. Step 2: Convert to fraction form
    112,907.15/155,818.76 = 65,163.57/x
  3. Step 3: Cross multiply
    112,907.15x = 155,818.76 × 65,163.57
  4. Step 4: Simplify right side
    112,907.15x = 10,153,705,764.44
  5. Step 5: Solve for x
    x = 10,153,705,764.44/112,907.15
  6. Step 6: Final answer
    x = 89,929.70

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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.