Home / 100,856.84-151,241.51-34,279.09

Finding the Fourth Proportional to 100,856.84, 151,241.51 and 34,279.09

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Solution

The fourth proportional to 100,856.84, 151,241.51 and 34,279.09 is: 51,403.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,856.84 : 151,241.51 = 34,279.09 : x
  2. Step 2: Convert to fraction form
    100,856.84/151,241.51 = 34,279.09/x
  3. Step 3: Cross multiply
    100,856.84x = 151,241.51 × 34,279.09
  4. Step 4: Simplify right side
    100,856.84x = 5,184,420,405.42
  5. Step 5: Solve for x
    x = 5,184,420,405.42/100,856.84
  6. Step 6: Final answer
    x = 51,403.76

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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.