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Finding the Fourth Proportional to 101,273.60, 151,910.40 and 42,103.10

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Solution

The fourth proportional to 101,273.60, 151,910.40 and 42,103.10 is: 63,154.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,273.60 : 151,910.40 = 42,103.10 : x
  2. Step 2: Convert to fraction form
    101,273.60/151,910.40 = 42,103.10/x
  3. Step 3: Cross multiply
    101,273.60x = 151,910.40 × 42,103.10
  4. Step 4: Simplify right side
    101,273.60x = 6,395,898,762.24
  5. Step 5: Solve for x
    x = 6,395,898,762.24/101,273.60
  6. Step 6: Final answer
    x = 63,154.65

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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.