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Finding the Fourth Proportional to 118,841.40, 164,001.14 and 68,540.40

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Solution

The fourth proportional to 118,841.40, 164,001.14 and 68,540.40 is: 94,585.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,841.40 : 164,001.14 = 68,540.40 : x
  2. Step 2: Convert to fraction form
    118,841.40/164,001.14 = 68,540.40/x
  3. Step 3: Cross multiply
    118,841.40x = 164,001.14 × 68,540.40
  4. Step 4: Simplify right side
    118,841.40x = 11,240,703,736.06
  5. Step 5: Solve for x
    x = 11,240,703,736.06/118,841.40
  6. Step 6: Final answer
    x = 94,585.76

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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.