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Finding the Fourth Proportional to 111,521.76, 167,239 and 40,427.52

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Solution

The fourth proportional to 111,521.76, 167,239 and 40,427.52 is: 60,625.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,521.76 : 167,239 = 40,427.52 : x
  2. Step 2: Convert to fraction form
    111,521.76/167,239 = 40,427.52/x
  3. Step 3: Cross multiply
    111,521.76x = 167,239 × 40,427.52
  4. Step 4: Simplify right side
    111,521.76x = 6,761,058,017.28
  5. Step 5: Solve for x
    x = 6,761,058,017.28/111,521.76
  6. Step 6: Final answer
    x = 60,625.46

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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.