Home / 109,191.60-163,787.31-30,305.79

Finding the Fourth Proportional to 109,191.60, 163,787.31 and 30,305.79

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Solution

The fourth proportional to 109,191.60, 163,787.31 and 30,305.79 is: 45,458.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,191.60 : 163,787.31 = 30,305.79 : x
  2. Step 2: Convert to fraction form
    109,191.60/163,787.31 = 30,305.79/x
  3. Step 3: Cross multiply
    109,191.60x = 163,787.31 × 30,305.79
  4. Step 4: Simplify right side
    109,191.60x = 4,963,703,821.52
  5. Step 5: Solve for x
    x = 4,963,703,821.52/109,191.60
  6. Step 6: Final answer
    x = 45,458.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.