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Finding the Fourth Proportional to 106,890, 160,354.40 and 36,753.72

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Solution

The fourth proportional to 106,890, 160,354.40 and 36,753.72 is: 55,137.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,890 : 160,354.40 = 36,753.72 : x
  2. Step 2: Convert to fraction form
    106,890/160,354.40 = 36,753.72/x
  3. Step 3: Cross multiply
    106,890x = 160,354.40 × 36,753.72
  4. Step 4: Simplify right side
    106,890x = 5,893,620,718.37
  5. Step 5: Solve for x
    x = 5,893,620,718.37/106,890
  6. Step 6: Final answer
    x = 55,137.25

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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.