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Finding the Fourth Proportional to 169,634.60, 254,480.70 and 90,727.40

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Solution

The fourth proportional to 169,634.60, 254,480.70 and 90,727.40 is: 136,106.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,634.60 : 254,480.70 = 90,727.40 : x
  2. Step 2: Convert to fraction form
    169,634.60/254,480.70 = 90,727.40/x
  3. Step 3: Cross multiply
    169,634.60x = 254,480.70 × 90,727.40
  4. Step 4: Simplify right side
    169,634.60x = 23,088,372,261.18
  5. Step 5: Solve for x
    x = 23,088,372,261.18/169,634.60
  6. Step 6: Final answer
    x = 136,106.50

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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.