Home / 112,342.20-155,025.89-61,344.78

Finding the Fourth Proportional to 112,342.20, 155,025.89 and 61,344.78

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Solution

The fourth proportional to 112,342.20, 155,025.89 and 61,344.78 is: 84,652.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,342.20 : 155,025.89 = 61,344.78 : x
  2. Step 2: Convert to fraction form
    112,342.20/155,025.89 = 61,344.78/x
  3. Step 3: Cross multiply
    112,342.20x = 155,025.89 × 61,344.78
  4. Step 4: Simplify right side
    112,342.20x = 9,510,028,458.33
  5. Step 5: Solve for x
    x = 9,510,028,458.33/112,342.20
  6. Step 6: Final answer
    x = 84,652.33

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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.