Home / 118,450.55-163,469.66-66,780.38

Finding the Fourth Proportional to 118,450.55, 163,469.66 and 66,780.38

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Solution

The fourth proportional to 118,450.55, 163,469.66 and 66,780.38 is: 92,161.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,450.55 : 163,469.66 = 66,780.38 : x
  2. Step 2: Convert to fraction form
    118,450.55/163,469.66 = 66,780.38/x
  3. Step 3: Cross multiply
    118,450.55x = 163,469.66 × 66,780.38
  4. Step 4: Simplify right side
    118,450.55x = 10,916,566,088.04
  5. Step 5: Solve for x
    x = 10,916,566,088.04/118,450.55
  6. Step 6: Final answer
    x = 92,161.38

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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.