Home / 118,727.68-163,843.32-65,012.28

Finding the Fourth Proportional to 118,727.68, 163,843.32 and 65,012.28

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Solution

The fourth proportional to 118,727.68, 163,843.32 and 65,012.28 is: 89,716.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,727.68 : 163,843.32 = 65,012.28 : x
  2. Step 2: Convert to fraction form
    118,727.68/163,843.32 = 65,012.28/x
  3. Step 3: Cross multiply
    118,727.68x = 163,843.32 × 65,012.28
  4. Step 4: Simplify right side
    118,727.68x = 10,651,827,795.97
  5. Step 5: Solve for x
    x = 10,651,827,795.97/118,727.68
  6. Step 6: Final answer
    x = 89,716.47

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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.