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Finding the Fourth Proportional to 169,485.14, 254,128.03 and 64,311.50

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Solution

The fourth proportional to 169,485.14, 254,128.03 and 64,311.50 is: 96,429.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,485.14 : 254,128.03 = 64,311.50 : x
  2. Step 2: Convert to fraction form
    169,485.14/254,128.03 = 64,311.50/x
  3. Step 3: Cross multiply
    169,485.14x = 254,128.03 × 64,311.50
  4. Step 4: Simplify right side
    169,485.14x = 16,343,354,801.35
  5. Step 5: Solve for x
    x = 16,343,354,801.35/169,485.14
  6. Step 6: Final answer
    x = 96,429.43

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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.