Home / 219,815.78-329,717.48-70,065.05

Finding the Fourth Proportional to 219,815.78, 329,717.48 and 70,065.05

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Solution

The fourth proportional to 219,815.78, 329,717.48 and 70,065.05 is: 105,095.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,815.78 : 329,717.48 = 70,065.05 : x
  2. Step 2: Convert to fraction form
    219,815.78/329,717.48 = 70,065.05/x
  3. Step 3: Cross multiply
    219,815.78x = 329,717.48 × 70,065.05
  4. Step 4: Simplify right side
    219,815.78x = 23,101,670,248.65
  5. Step 5: Solve for x
    x = 23,101,670,248.65/219,815.78
  6. Step 6: Final answer
    x = 105,095.60

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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.