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Finding the Fourth Proportional to 172,349.64, 237,764.77 and 100,697.45

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Solution

The fourth proportional to 172,349.64, 237,764.77 and 100,697.45 is: 138,917.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,349.64 : 237,764.77 = 100,697.45 : x
  2. Step 2: Convert to fraction form
    172,349.64/237,764.77 = 100,697.45/x
  3. Step 3: Cross multiply
    172,349.64x = 237,764.77 × 100,697.45
  4. Step 4: Simplify right side
    172,349.64x = 23,942,304,598.27
  5. Step 5: Solve for x
    x = 23,942,304,598.27/172,349.64
  6. Step 6: Final answer
    x = 138,917.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.