Home / 105,920.97-146,170.27-63,479.50

Finding the Fourth Proportional to 105,920.97, 146,170.27 and 63,479.50

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Solution

The fourth proportional to 105,920.97, 146,170.27 and 63,479.50 is: 87,601.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,920.97 : 146,170.27 = 63,479.50 : x
  2. Step 2: Convert to fraction form
    105,920.97/146,170.27 = 63,479.50/x
  3. Step 3: Cross multiply
    105,920.97x = 146,170.27 × 63,479.50
  4. Step 4: Simplify right side
    105,920.97x = 9,278,815,368.39
  5. Step 5: Solve for x
    x = 9,278,815,368.39/105,920.97
  6. Step 6: Final answer
    x = 87,601.31

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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.