Home / 110,111.26-151,964.20-61,721.40

Finding the Fourth Proportional to 110,111.26, 151,964.20 and 61,721.40

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Solution

The fourth proportional to 110,111.26, 151,964.20 and 61,721.40 is: 85,181.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,111.26 : 151,964.20 = 61,721.40 : x
  2. Step 2: Convert to fraction form
    110,111.26/151,964.20 = 61,721.40/x
  3. Step 3: Cross multiply
    110,111.26x = 151,964.20 × 61,721.40
  4. Step 4: Simplify right side
    110,111.26x = 9,379,443,173.88
  5. Step 5: Solve for x
    x = 9,379,443,173.88/110,111.26
  6. Step 6: Final answer
    x = 85,181.51

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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.