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Finding the Fourth Proportional to 154,327.17, 213,016.32 and 89,811.48

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Solution

The fourth proportional to 154,327.17, 213,016.32 and 89,811.48 is: 123,965.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,327.17 : 213,016.32 = 89,811.48 : x
  2. Step 2: Convert to fraction form
    154,327.17/213,016.32 = 89,811.48/x
  3. Step 3: Cross multiply
    154,327.17x = 213,016.32 × 89,811.48
  4. Step 4: Simplify right side
    154,327.17x = 19,131,310,963.35
  5. Step 5: Solve for x
    x = 19,131,310,963.35/154,327.17
  6. Step 6: Final answer
    x = 123,965.93

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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.