Home / 120,623.52-166,468-69,645.57

Finding the Fourth Proportional to 120,623.52, 166,468 and 69,645.57

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Solution

The fourth proportional to 120,623.52, 166,468 and 69,645.57 is: 96,115.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,623.52 : 166,468 = 69,645.57 : x
  2. Step 2: Convert to fraction form
    120,623.52/166,468 = 69,645.57/x
  3. Step 3: Cross multiply
    120,623.52x = 166,468 × 69,645.57
  4. Step 4: Simplify right side
    120,623.52x = 11,593,758,746.76
  5. Step 5: Solve for x
    x = 11,593,758,746.76/120,623.52
  6. Step 6: Final answer
    x = 96,115.24

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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.