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Finding the Fourth Proportional to 171,085.78, 236,107.35 and 103,124.35

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Solution

The fourth proportional to 171,085.78, 236,107.35 and 103,124.35 is: 142,317.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,085.78 : 236,107.35 = 103,124.35 : x
  2. Step 2: Convert to fraction form
    171,085.78/236,107.35 = 103,124.35/x
  3. Step 3: Cross multiply
    171,085.78x = 236,107.35 × 103,124.35
  4. Step 4: Simplify right side
    171,085.78x = 24,348,416,998.97
  5. Step 5: Solve for x
    x = 24,348,416,998.97/171,085.78
  6. Step 6: Final answer
    x = 142,317.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.