Home / 112,321.44-155,000.61-61,335.54

Finding the Fourth Proportional to 112,321.44, 155,000.61 and 61,335.54

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Solution

The fourth proportional to 112,321.44, 155,000.61 and 61,335.54 is: 84,641.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,321.44 : 155,000.61 = 61,335.54 : x
  2. Step 2: Convert to fraction form
    112,321.44/155,000.61 = 61,335.54/x
  3. Step 3: Cross multiply
    112,321.44x = 155,000.61 × 61,335.54
  4. Step 4: Simplify right side
    112,321.44x = 9,507,046,114.68
  5. Step 5: Solve for x
    x = 9,507,046,114.68/112,321.44
  6. Step 6: Final answer
    x = 84,641.42

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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.