Home / 102,743.85-141,746.45-64,481.07

Finding the Fourth Proportional to 102,743.85, 141,746.45 and 64,481.07

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Solution

The fourth proportional to 102,743.85, 141,746.45 and 64,481.07 is: 88,958.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,743.85 : 141,746.45 = 64,481.07 : x
  2. Step 2: Convert to fraction form
    102,743.85/141,746.45 = 64,481.07/x
  3. Step 3: Cross multiply
    102,743.85x = 141,746.45 × 64,481.07
  4. Step 4: Simplify right side
    102,743.85x = 9,139,962,764.70
  5. Step 5: Solve for x
    x = 9,139,962,764.70/102,743.85
  6. Step 6: Final answer
    x = 88,958.73

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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.