Home / 118,704.92-163,812.82-64,993.40

Finding the Fourth Proportional to 118,704.92, 163,812.82 and 64,993.40

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Solution

The fourth proportional to 118,704.92, 163,812.82 and 64,993.40 is: 89,690.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,704.92 : 163,812.82 = 64,993.40 : x
  2. Step 2: Convert to fraction form
    118,704.92/163,812.82 = 64,993.40/x
  3. Step 3: Cross multiply
    118,704.92x = 163,812.82 × 64,993.40
  4. Step 4: Simplify right side
    118,704.92x = 10,646,752,135.39
  5. Step 5: Solve for x
    x = 10,646,752,135.39/118,704.92
  6. Step 6: Final answer
    x = 89,690.91

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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.