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Finding the Fourth Proportional to 126,573.12, 189,879.12 and 37,816.56

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Solution

The fourth proportional to 126,573.12, 189,879.12 and 37,816.56 is: 56,730.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,573.12 : 189,879.12 = 37,816.56 : x
  2. Step 2: Convert to fraction form
    126,573.12/189,879.12 = 37,816.56/x
  3. Step 3: Cross multiply
    126,573.12x = 189,879.12 × 37,816.56
  4. Step 4: Simplify right side
    126,573.12x = 7,180,575,134.23
  5. Step 5: Solve for x
    x = 7,180,575,134.23/126,573.12
  6. Step 6: Final answer
    x = 56,730.65

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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.