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Finding the Fourth Proportional to 157,954.44, 217,990.80 and 89,992.20

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Solution

The fourth proportional to 157,954.44, 217,990.80 and 89,992.20 is: 124,197.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,954.44 : 217,990.80 = 89,992.20 : x
  2. Step 2: Convert to fraction form
    157,954.44/217,990.80 = 89,992.20/x
  3. Step 3: Cross multiply
    157,954.44x = 217,990.80 × 89,992.20
  4. Step 4: Simplify right side
    157,954.44x = 19,617,471,671.76
  5. Step 5: Solve for x
    x = 19,617,471,671.76/157,954.44
  6. Step 6: Final answer
    x = 124,197.03

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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.