Home / 151,724.52-209,285.22-109,215.72

Finding the Fourth Proportional to 151,724.52, 209,285.22 and 109,215.72

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Solution

The fourth proportional to 151,724.52, 209,285.22 and 109,215.72 is: 150,649.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,724.52 : 209,285.22 = 109,215.72 : x
  2. Step 2: Convert to fraction form
    151,724.52/209,285.22 = 109,215.72/x
  3. Step 3: Cross multiply
    151,724.52x = 209,285.22 × 109,215.72
  4. Step 4: Simplify right side
    151,724.52x = 22,857,235,987.66
  5. Step 5: Solve for x
    x = 22,857,235,987.66/151,724.52
  6. Step 6: Final answer
    x = 150,649.59

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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.