Home / 102,092.22-153,138.33-31,977

Finding the Fourth Proportional to 102,092.22, 153,138.33 and 31,977

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Solution

The fourth proportional to 102,092.22, 153,138.33 and 31,977 is: 47,965.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,092.22 : 153,138.33 = 31,977 : x
  2. Step 2: Convert to fraction form
    102,092.22/153,138.33 = 31,977/x
  3. Step 3: Cross multiply
    102,092.22x = 153,138.33 × 31,977
  4. Step 4: Simplify right side
    102,092.22x = 4,896,904,378.41
  5. Step 5: Solve for x
    x = 4,896,904,378.41/102,092.22
  6. Step 6: Final answer
    x = 47,965.50

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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.