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Finding the Fourth Proportional to 171,152.06, 256,728.81 and 112,359.74

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Solution

The fourth proportional to 171,152.06, 256,728.81 and 112,359.74 is: 168,540.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,152.06 : 256,728.81 = 112,359.74 : x
  2. Step 2: Convert to fraction form
    171,152.06/256,728.81 = 112,359.74/x
  3. Step 3: Cross multiply
    171,152.06x = 256,728.81 × 112,359.74
  4. Step 4: Simplify right side
    171,152.06x = 28,845,982,342.11
  5. Step 5: Solve for x
    x = 28,845,982,342.11/171,152.06
  6. Step 6: Final answer
    x = 168,540.08

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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.