Home / 140,699.34-194,165.64-77,036.58

Finding the Fourth Proportional to 140,699.34, 194,165.64 and 77,036.58

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Solution

The fourth proportional to 140,699.34, 194,165.64 and 77,036.58 is: 106,310.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,699.34 : 194,165.64 = 77,036.58 : x
  2. Step 2: Convert to fraction form
    140,699.34/194,165.64 = 77,036.58/x
  3. Step 3: Cross multiply
    140,699.34x = 194,165.64 × 77,036.58
  4. Step 4: Simplify right side
    140,699.34x = 14,957,856,859.11
  5. Step 5: Solve for x
    x = 14,957,856,859.11/140,699.34
  6. Step 6: Final answer
    x = 106,310.78

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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.