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Finding the Fourth Proportional to 158,850.30, 219,212.29 and 87,228.89

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Solution

The fourth proportional to 158,850.30, 219,212.29 and 87,228.89 is: 120,375.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,850.30 : 219,212.29 = 87,228.89 : x
  2. Step 2: Convert to fraction form
    158,850.30/219,212.29 = 87,228.89/x
  3. Step 3: Cross multiply
    158,850.30x = 219,212.29 × 87,228.89
  4. Step 4: Simplify right side
    158,850.30x = 19,121,644,731.06
  5. Step 5: Solve for x
    x = 19,121,644,731.06/158,850.30
  6. Step 6: Final answer
    x = 120,375.25

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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.