Home / 218,237.36-327,435.99-91,909.40

Finding the Fourth Proportional to 218,237.36, 327,435.99 and 91,909.40

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Solution

The fourth proportional to 218,237.36, 327,435.99 and 91,909.40 is: 137,897.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,237.36 : 327,435.99 = 91,909.40 : x
  2. Step 2: Convert to fraction form
    218,237.36/327,435.99 = 91,909.40/x
  3. Step 3: Cross multiply
    218,237.36x = 327,435.99 × 91,909.40
  4. Step 4: Simplify right side
    218,237.36x = 30,094,443,397.47
  5. Step 5: Solve for x
    x = 30,094,443,397.47/218,237.36
  6. Step 6: Final answer
    x = 137,897.76

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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.