Home / 160,905.74-222,093-100,439.98

Finding the Fourth Proportional to 160,905.74, 222,093 and 100,439.98

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Solution

The fourth proportional to 160,905.74, 222,093 and 100,439.98 is: 138,634.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,905.74 : 222,093 = 100,439.98 : x
  2. Step 2: Convert to fraction form
    160,905.74/222,093 = 100,439.98/x
  3. Step 3: Cross multiply
    160,905.74x = 222,093 × 100,439.98
  4. Step 4: Simplify right side
    160,905.74x = 22,307,015,922.91
  5. Step 5: Solve for x
    x = 22,307,015,922.91/160,905.74
  6. Step 6: Final answer
    x = 138,634.06

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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.