Home / 112,144.60-154,761.42-61,157.62

Finding the Fourth Proportional to 112,144.60, 154,761.42 and 61,157.62

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Solution

The fourth proportional to 112,144.60, 154,761.42 and 61,157.62 is: 84,398.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,144.60 : 154,761.42 = 61,157.62 : x
  2. Step 2: Convert to fraction form
    112,144.60/154,761.42 = 61,157.62/x
  3. Step 3: Cross multiply
    112,144.60x = 154,761.42 × 61,157.62
  4. Step 4: Simplify right side
    112,144.60x = 9,464,840,115.02
  5. Step 5: Solve for x
    x = 9,464,840,115.02/112,144.60
  6. Step 6: Final answer
    x = 84,398.54

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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.