Home / 219,900.81-329,869.75-70,162.39

Finding the Fourth Proportional to 219,900.81, 329,869.75 and 70,162.39

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Solution

The fourth proportional to 219,900.81, 329,869.75 and 70,162.39 is: 105,249.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,900.81 : 329,869.75 = 70,162.39 : x
  2. Step 2: Convert to fraction form
    219,900.81/329,869.75 = 70,162.39/x
  3. Step 3: Cross multiply
    219,900.81x = 329,869.75 × 70,162.39
  4. Step 4: Simplify right side
    219,900.81x = 23,144,450,048.70
  5. Step 5: Solve for x
    x = 23,144,450,048.70/219,900.81
  6. Step 6: Final answer
    x = 105,249.50

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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.