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Finding the Fourth Proportional to 101,289.40, 151,934.10 and 34,720.60

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Solution

The fourth proportional to 101,289.40, 151,934.10 and 34,720.60 is: 52,080.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,289.40 : 151,934.10 = 34,720.60 : x
  2. Step 2: Convert to fraction form
    101,289.40/151,934.10 = 34,720.60/x
  3. Step 3: Cross multiply
    101,289.40x = 151,934.10 × 34,720.60
  4. Step 4: Simplify right side
    101,289.40x = 5,275,243,112.46
  5. Step 5: Solve for x
    x = 5,275,243,112.46/101,289.40
  6. Step 6: Final answer
    x = 52,080.90

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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.