Home / 112,787.22-155,851.65-107,321.34

Finding the Fourth Proportional to 112,787.22, 155,851.65 and 107,321.34

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Solution

The fourth proportional to 112,787.22, 155,851.65 and 107,321.34 is: 148,298.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,787.22 : 155,851.65 = 107,321.34 : x
  2. Step 2: Convert to fraction form
    112,787.22/155,851.65 = 107,321.34/x
  3. Step 3: Cross multiply
    112,787.22x = 155,851.65 × 107,321.34
  4. Step 4: Simplify right side
    112,787.22x = 16,726,207,919.21
  5. Step 5: Solve for x
    x = 16,726,207,919.21/112,787.22
  6. Step 6: Final answer
    x = 148,298.79

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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.