Home / 109,741.67-151,455.78-61,998.08

Finding the Fourth Proportional to 109,741.67, 151,455.78 and 61,998.08

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Solution

The fourth proportional to 109,741.67, 151,455.78 and 61,998.08 is: 85,564.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,741.67 : 151,455.78 = 61,998.08 : x
  2. Step 2: Convert to fraction form
    109,741.67/151,455.78 = 61,998.08/x
  3. Step 3: Cross multiply
    109,741.67x = 151,455.78 × 61,998.08
  4. Step 4: Simplify right side
    109,741.67x = 9,389,967,564.90
  5. Step 5: Solve for x
    x = 9,389,967,564.90/109,741.67
  6. Step 6: Final answer
    x = 85,564.29

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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.