Home / 109,590.50-151,241.76-64,251.96

Finding the Fourth Proportional to 109,590.50, 151,241.76 and 64,251.96

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Solution

The fourth proportional to 109,590.50, 151,241.76 and 64,251.96 is: 88,671.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,590.50 : 151,241.76 = 64,251.96 : x
  2. Step 2: Convert to fraction form
    109,590.50/151,241.76 = 64,251.96/x
  3. Step 3: Cross multiply
    109,590.50x = 151,241.76 × 64,251.96
  4. Step 4: Simplify right side
    109,590.50x = 9,717,579,513.85
  5. Step 5: Solve for x
    x = 9,717,579,513.85/109,590.50
  6. Step 6: Final answer
    x = 88,671.74

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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.