Home / 103,747.40-143,165.58-61,309.88

Finding the Fourth Proportional to 103,747.40, 143,165.58 and 61,309.88

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Solution

The fourth proportional to 103,747.40, 143,165.58 and 61,309.88 is: 84,604.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,747.40 : 143,165.58 = 61,309.88 : x
  2. Step 2: Convert to fraction form
    103,747.40/143,165.58 = 61,309.88/x
  3. Step 3: Cross multiply
    103,747.40x = 143,165.58 × 61,309.88
  4. Step 4: Simplify right side
    103,747.40x = 8,777,464,529.93
  5. Step 5: Solve for x
    x = 8,777,464,529.93/103,747.40
  6. Step 6: Final answer
    x = 84,604.19

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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.