Home / 210,067.07-315,063.18-83,696.72

Finding the Fourth Proportional to 210,067.07, 315,063.18 and 83,696.72

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Solution

The fourth proportional to 210,067.07, 315,063.18 and 83,696.72 is: 125,530.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,067.07 : 315,063.18 = 83,696.72 : x
  2. Step 2: Convert to fraction form
    210,067.07/315,063.18 = 83,696.72/x
  3. Step 3: Cross multiply
    210,067.07x = 315,063.18 × 83,696.72
  4. Step 4: Simplify right side
    210,067.07x = 26,369,753,183.45
  5. Step 5: Solve for x
    x = 26,369,753,183.45/210,067.07
  6. Step 6: Final answer
    x = 125,530.16

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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.