Home / 136,748.44-205,122.66-109,221.40

Finding the Fourth Proportional to 136,748.44, 205,122.66 and 109,221.40

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Solution

The fourth proportional to 136,748.44, 205,122.66 and 109,221.40 is: 163,832.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,748.44 : 205,122.66 = 109,221.40 : x
  2. Step 2: Convert to fraction form
    136,748.44/205,122.66 = 109,221.40/x
  3. Step 3: Cross multiply
    136,748.44x = 205,122.66 × 109,221.40
  4. Step 4: Simplify right side
    136,748.44x = 22,403,784,096.92
  5. Step 5: Solve for x
    x = 22,403,784,096.92/136,748.44
  6. Step 6: Final answer
    x = 163,832.10

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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.