Home / 101,467.06-140,063.79-90,838.24

Finding the Fourth Proportional to 101,467.06, 140,063.79 and 90,838.24

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Solution

The fourth proportional to 101,467.06, 140,063.79 and 90,838.24 is: 125,391.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,467.06 : 140,063.79 = 90,838.24 : x
  2. Step 2: Convert to fraction form
    101,467.06/140,063.79 = 90,838.24/x
  3. Step 3: Cross multiply
    101,467.06x = 140,063.79 × 90,838.24
  4. Step 4: Simplify right side
    101,467.06x = 12,723,148,171.33
  5. Step 5: Solve for x
    x = 12,723,148,171.33/101,467.06
  6. Step 6: Final answer
    x = 125,391.91

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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.