Home / 218,001.54-300,844.11-131,962.50

Finding the Fourth Proportional to 218,001.54, 300,844.11 and 131,962.50

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Solution

The fourth proportional to 218,001.54, 300,844.11 and 131,962.50 is: 182,109.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,001.54 : 300,844.11 = 131,962.50 : x
  2. Step 2: Convert to fraction form
    218,001.54/300,844.11 = 131,962.50/x
  3. Step 3: Cross multiply
    218,001.54x = 300,844.11 × 131,962.50
  4. Step 4: Simplify right side
    218,001.54x = 39,700,140,865.88
  5. Step 5: Solve for x
    x = 39,700,140,865.88/218,001.54
  6. Step 6: Final answer
    x = 182,109.45

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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.