Home / 122,238.20-168,695.70-91,969.32

Finding the Fourth Proportional to 122,238.20, 168,695.70 and 91,969.32

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Solution

The fourth proportional to 122,238.20, 168,695.70 and 91,969.32 is: 126,922.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,238.20 : 168,695.70 = 91,969.32 : x
  2. Step 2: Convert to fraction form
    122,238.20/168,695.70 = 91,969.32/x
  3. Step 3: Cross multiply
    122,238.20x = 168,695.70 × 91,969.32
  4. Step 4: Simplify right side
    122,238.20x = 15,514,828,815.92
  5. Step 5: Solve for x
    x = 15,514,828,815.92/122,238.20
  6. Step 6: Final answer
    x = 126,922.92

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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.