Home / 112,791.92-155,652.88-61,804.23

Finding the Fourth Proportional to 112,791.92, 155,652.88 and 61,804.23

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Solution

The fourth proportional to 112,791.92, 155,652.88 and 61,804.23 is: 85,289.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,791.92 : 155,652.88 = 61,804.23 : x
  2. Step 2: Convert to fraction form
    112,791.92/155,652.88 = 61,804.23/x
  3. Step 3: Cross multiply
    112,791.92x = 155,652.88 × 61,804.23
  4. Step 4: Simplify right side
    112,791.92x = 9,620,006,395.68
  5. Step 5: Solve for x
    x = 9,620,006,395.68/112,791.92
  6. Step 6: Final answer
    x = 85,289.85

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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.