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Finding the Fourth Proportional to 114,504.64, 171,485.45 and 90,735.77

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Solution

The fourth proportional to 114,504.64, 171,485.45 and 90,735.77 is: 135,888.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,504.64 : 171,485.45 = 90,735.77 : x
  2. Step 2: Convert to fraction form
    114,504.64/171,485.45 = 90,735.77/x
  3. Step 3: Cross multiply
    114,504.64x = 171,485.45 × 90,735.77
  4. Step 4: Simplify right side
    114,504.64x = 15,559,864,349.55
  5. Step 5: Solve for x
    x = 15,559,864,349.55/114,504.64
  6. Step 6: Final answer
    x = 135,888.51

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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.