Home / 213,336.12-319,897.08-71,131.08

Finding the Fourth Proportional to 213,336.12, 319,897.08 and 71,131.08

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Solution

The fourth proportional to 213,336.12, 319,897.08 and 71,131.08 is: 106,660.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,336.12 : 319,897.08 = 71,131.08 : x
  2. Step 2: Convert to fraction form
    213,336.12/319,897.08 = 71,131.08/x
  3. Step 3: Cross multiply
    213,336.12x = 319,897.08 × 71,131.08
  4. Step 4: Simplify right side
    213,336.12x = 22,754,624,789.25
  5. Step 5: Solve for x
    x = 22,754,624,789.25/213,336.12
  6. Step 6: Final answer
    x = 106,660.91

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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.