Home / 112,719.33-155,555.58-61,734.87

Finding the Fourth Proportional to 112,719.33, 155,555.58 and 61,734.87

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Solution

The fourth proportional to 112,719.33, 155,555.58 and 61,734.87 is: 85,195.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,719.33 : 155,555.58 = 61,734.87 : x
  2. Step 2: Convert to fraction form
    112,719.33/155,555.58 = 61,734.87/x
  3. Step 3: Cross multiply
    112,719.33x = 155,555.58 × 61,734.87
  4. Step 4: Simplify right side
    112,719.33x = 9,603,203,509.07
  5. Step 5: Solve for x
    x = 9,603,203,509.07/112,719.33
  6. Step 6: Final answer
    x = 85,195.71

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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.