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Finding the Fourth Proportional to 171,111.60, 256,528.80 and 71,346.60

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Solution

The fourth proportional to 171,111.60, 256,528.80 and 71,346.60 is: 106,962.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,111.60 : 256,528.80 = 71,346.60 : x
  2. Step 2: Convert to fraction form
    171,111.60/256,528.80 = 71,346.60/x
  3. Step 3: Cross multiply
    171,111.60x = 256,528.80 × 71,346.60
  4. Step 4: Simplify right side
    171,111.60x = 18,302,457,682.08
  5. Step 5: Solve for x
    x = 18,302,457,682.08/171,111.60
  6. Step 6: Final answer
    x = 106,962.11

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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.