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Finding the Fourth Proportional to 169,946.88, 254,992 and 91,040

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Solution

The fourth proportional to 169,946.88, 254,992 and 91,040 is: 136,598.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,946.88 : 254,992 = 91,040 : x
  2. Step 2: Convert to fraction form
    169,946.88/254,992 = 91,040/x
  3. Step 3: Cross multiply
    169,946.88x = 254,992 × 91,040
  4. Step 4: Simplify right side
    169,946.88x = 23,214,471,680
  5. Step 5: Solve for x
    x = 23,214,471,680/169,946.88
  6. Step 6: Final answer
    x = 136,598.40

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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.