Home / 112,465.45-155,206.49-61,481.57

Finding the Fourth Proportional to 112,465.45, 155,206.49 and 61,481.57

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Solution

The fourth proportional to 112,465.45, 155,206.49 and 61,481.57 is: 84,846.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,465.45 : 155,206.49 = 61,481.57 : x
  2. Step 2: Convert to fraction form
    112,465.45/155,206.49 = 61,481.57/x
  3. Step 3: Cross multiply
    112,465.45x = 155,206.49 × 61,481.57
  4. Step 4: Simplify right side
    112,465.45x = 9,542,338,679.39
  5. Step 5: Solve for x
    x = 9,542,338,679.39/112,465.45
  6. Step 6: Final answer
    x = 84,846.85

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1.5x scale

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.