Home / 118,635.07-163,716.42-64,920.10

Finding the Fourth Proportional to 118,635.07, 163,716.42 and 64,920.10

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Solution

The fourth proportional to 118,635.07, 163,716.42 and 64,920.10 is: 89,589.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,635.07 : 163,716.42 = 64,920.10 : x
  2. Step 2: Convert to fraction form
    118,635.07/163,716.42 = 64,920.10/x
  3. Step 3: Cross multiply
    118,635.07x = 163,716.42 × 64,920.10
  4. Step 4: Simplify right side
    118,635.07x = 10,628,486,033.44
  5. Step 5: Solve for x
    x = 10,628,486,033.44/118,635.07
  6. Step 6: Final answer
    x = 89,589.75

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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.