Home / 213,059.74-319,579.23-79,929.63

Finding the Fourth Proportional to 213,059.74, 319,579.23 and 79,929.63

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Solution

The fourth proportional to 213,059.74, 319,579.23 and 79,929.63 is: 119,890.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,059.74 : 319,579.23 = 79,929.63 : x
  2. Step 2: Convert to fraction form
    213,059.74/319,579.23 = 79,929.63/x
  3. Step 3: Cross multiply
    213,059.74x = 319,579.23 × 79,929.63
  4. Step 4: Simplify right side
    213,059.74x = 25,543,849,609.58
  5. Step 5: Solve for x
    x = 25,543,849,609.58/213,059.74
  6. Step 6: Final answer
    x = 119,890.55

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1.5x scale

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.