Home / 102,481.02-153,726.24-31,398.57

Finding the Fourth Proportional to 102,481.02, 153,726.24 and 31,398.57

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Solution

The fourth proportional to 102,481.02, 153,726.24 and 31,398.57 is: 47,099.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,481.02 : 153,726.24 = 31,398.57 : x
  2. Step 2: Convert to fraction form
    102,481.02/153,726.24 = 31,398.57/x
  3. Step 3: Cross multiply
    102,481.02x = 153,726.24 × 31,398.57
  4. Step 4: Simplify right side
    102,481.02x = 4,826,784,107.48
  5. Step 5: Solve for x
    x = 4,826,784,107.48/102,481.02
  6. Step 6: Final answer
    x = 47,099.30

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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.