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Finding the Fourth Proportional to 114,256.20, 171,092.70 and 90,928.20

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Solution

The fourth proportional to 114,256.20, 171,092.70 and 90,928.20 is: 136,160.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,256.20 : 171,092.70 = 90,928.20 : x
  2. Step 2: Convert to fraction form
    114,256.20/171,092.70 = 90,928.20/x
  3. Step 3: Cross multiply
    114,256.20x = 171,092.70 × 90,928.20
  4. Step 4: Simplify right side
    114,256.20x = 15,557,151,244.14
  5. Step 5: Solve for x
    x = 15,557,151,244.14/114,256.20
  6. Step 6: Final answer
    x = 136,160.24

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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.