Home / 118,119.26-163,018.42-67,139.66

Finding the Fourth Proportional to 118,119.26, 163,018.42 and 67,139.66

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Solution

The fourth proportional to 118,119.26, 163,018.42 and 67,139.66 is: 92,660.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,119.26 : 163,018.42 = 67,139.66 : x
  2. Step 2: Convert to fraction form
    118,119.26/163,018.42 = 67,139.66/x
  3. Step 3: Cross multiply
    118,119.26x = 163,018.42 × 67,139.66
  4. Step 4: Simplify right side
    118,119.26x = 10,945,000,309.60
  5. Step 5: Solve for x
    x = 10,945,000,309.60/118,119.26
  6. Step 6: Final answer
    x = 92,660.59

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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.