Home / 103,788.66-143,175.96-60,739.86

Finding the Fourth Proportional to 103,788.66, 143,175.96 and 60,739.86

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Solution

The fourth proportional to 103,788.66, 143,175.96 and 60,739.86 is: 83,790.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,788.66 : 143,175.96 = 60,739.86 : x
  2. Step 2: Convert to fraction form
    103,788.66/143,175.96 = 60,739.86/x
  3. Step 3: Cross multiply
    103,788.66x = 143,175.96 × 60,739.86
  4. Step 4: Simplify right side
    103,788.66x = 8,696,487,765.77
  5. Step 5: Solve for x
    x = 8,696,487,765.77/103,788.66
  6. Step 6: Final answer
    x = 83,790.35

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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.