Home / 150,521.69-207,718.22-86,858.12

Finding the Fourth Proportional to 150,521.69, 207,718.22 and 86,858.12

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Solution

The fourth proportional to 150,521.69, 207,718.22 and 86,858.12 is: 119,863.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,521.69 : 207,718.22 = 86,858.12 : x
  2. Step 2: Convert to fraction form
    150,521.69/207,718.22 = 86,858.12/x
  3. Step 3: Cross multiply
    150,521.69x = 207,718.22 × 86,858.12
  4. Step 4: Simplify right side
    150,521.69x = 18,042,014,815.39
  5. Step 5: Solve for x
    x = 18,042,014,815.39/150,521.69
  6. Step 6: Final answer
    x = 119,863.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.