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Finding the Fourth Proportional to 157,168.54, 217,146.72 and 109,634.23

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Solution

The fourth proportional to 157,168.54, 217,146.72 and 109,634.23 is: 151,472.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,168.54 : 217,146.72 = 109,634.23 : x
  2. Step 2: Convert to fraction form
    157,168.54/217,146.72 = 109,634.23/x
  3. Step 3: Cross multiply
    157,168.54x = 217,146.72 × 109,634.23
  4. Step 4: Simplify right side
    157,168.54x = 23,806,713,444.23
  5. Step 5: Solve for x
    x = 23,806,713,444.23/157,168.54
  6. Step 6: Final answer
    x = 151,472.51

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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.