Home / 101,664.18-140,294.55-61,379.64

Finding the Fourth Proportional to 101,664.18, 140,294.55 and 61,379.64

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Solution

The fourth proportional to 101,664.18, 140,294.55 and 61,379.64 is: 84,702.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,664.18 : 140,294.55 = 61,379.64 : x
  2. Step 2: Convert to fraction form
    101,664.18/140,294.55 = 61,379.64/x
  3. Step 3: Cross multiply
    101,664.18x = 140,294.55 × 61,379.64
  4. Step 4: Simplify right side
    101,664.18x = 8,611,228,857.88
  5. Step 5: Solve for x
    x = 8,611,228,857.88/101,664.18
  6. Step 6: Final answer
    x = 84,702.68

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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.