Home / 105,633.64-145,467.18-98,879.92

Finding the Fourth Proportional to 105,633.64, 145,467.18 and 98,879.92

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Solution

The fourth proportional to 105,633.64, 145,467.18 and 98,879.92 is: 136,166.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,633.64 : 145,467.18 = 98,879.92 : x
  2. Step 2: Convert to fraction form
    105,633.64/145,467.18 = 98,879.92/x
  3. Step 3: Cross multiply
    105,633.64x = 145,467.18 × 98,879.92
  4. Step 4: Simplify right side
    105,633.64x = 14,383,783,121.03
  5. Step 5: Solve for x
    x = 14,383,783,121.03/105,633.64
  6. Step 6: Final answer
    x = 136,166.69

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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.