Home / 106,121.66-146,451.75-58,378.64

Finding the Fourth Proportional to 106,121.66, 146,451.75 and 58,378.64

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Solution

The fourth proportional to 106,121.66, 146,451.75 and 58,378.64 is: 80,564.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,121.66 : 146,451.75 = 58,378.64 : x
  2. Step 2: Convert to fraction form
    106,121.66/146,451.75 = 58,378.64/x
  3. Step 3: Cross multiply
    106,121.66x = 146,451.75 × 58,378.64
  4. Step 4: Simplify right side
    106,121.66x = 8,549,653,990.62
  5. Step 5: Solve for x
    x = 8,549,653,990.62/106,121.66
  6. Step 6: Final answer
    x = 80,564.65

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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.