Home / 106,284.16-146,650.60-80,783.72

Finding the Fourth Proportional to 106,284.16, 146,650.60 and 80,783.72

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Solution

The fourth proportional to 106,284.16, 146,650.60 and 80,783.72 is: 111,465.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,284.16 : 146,650.60 = 80,783.72 : x
  2. Step 2: Convert to fraction form
    106,284.16/146,650.60 = 80,783.72/x
  3. Step 3: Cross multiply
    106,284.16x = 146,650.60 × 80,783.72
  4. Step 4: Simplify right side
    106,284.16x = 11,846,981,008.23
  5. Step 5: Solve for x
    x = 11,846,981,008.23/106,284.16
  6. Step 6: Final answer
    x = 111,465.16

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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.