Home / 202,217.23-279,058.95-111,578.83

Finding the Fourth Proportional to 202,217.23, 279,058.95 and 111,578.83

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Solution

The fourth proportional to 202,217.23, 279,058.95 and 111,578.83 is: 153,978.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,217.23 : 279,058.95 = 111,578.83 : x
  2. Step 2: Convert to fraction form
    202,217.23/279,058.95 = 111,578.83/x
  3. Step 3: Cross multiply
    202,217.23x = 279,058.95 × 111,578.83
  4. Step 4: Simplify right side
    202,217.23x = 31,137,070,584.13
  5. Step 5: Solve for x
    x = 31,137,070,584.13/202,217.23
  6. Step 6: Final answer
    x = 153,978.33

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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.