Home / 103,206.12-154,789.68-36,643.56

Finding the Fourth Proportional to 103,206.12, 154,789.68 and 36,643.56

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Solution

The fourth proportional to 103,206.12, 154,789.68 and 36,643.56 is: 54,958.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,206.12 : 154,789.68 = 36,643.56 : x
  2. Step 2: Convert to fraction form
    103,206.12/154,789.68 = 36,643.56/x
  3. Step 3: Cross multiply
    103,206.12x = 154,789.68 × 36,643.56
  4. Step 4: Simplify right side
    103,206.12x = 5,672,044,926.46
  5. Step 5: Solve for x
    x = 5,672,044,926.46/103,206.12
  6. Step 6: Final answer
    x = 54,958.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.