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Finding the Fourth Proportional to 153,794.61, 212,241.62 and 89,258.97

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Solution

The fourth proportional to 153,794.61, 212,241.62 and 89,258.97 is: 123,180.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,794.61 : 212,241.62 = 89,258.97 : x
  2. Step 2: Convert to fraction form
    153,794.61/212,241.62 = 89,258.97/x
  3. Step 3: Cross multiply
    153,794.61x = 212,241.62 × 89,258.97
  4. Step 4: Simplify right side
    153,794.61x = 18,944,468,392.33
  5. Step 5: Solve for x
    x = 18,944,468,392.33/153,794.61
  6. Step 6: Final answer
    x = 123,180.31

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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.