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Finding the Fourth Proportional to 171,126.54, 256,412.79 and 104,364.72

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Solution

The fourth proportional to 171,126.54, 256,412.79 and 104,364.72 is: 156,378.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,126.54 : 256,412.79 = 104,364.72 : x
  2. Step 2: Convert to fraction form
    171,126.54/256,412.79 = 104,364.72/x
  3. Step 3: Cross multiply
    171,126.54x = 256,412.79 × 104,364.72
  4. Step 4: Simplify right side
    171,126.54x = 26,760,449,032.77
  5. Step 5: Solve for x
    x = 26,760,449,032.77/171,126.54
  6. Step 6: Final answer
    x = 156,378.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.