Home / 126,400.75-189,632.31-37,653.91

Finding the Fourth Proportional to 126,400.75, 189,632.31 and 37,653.91

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Solution

The fourth proportional to 126,400.75, 189,632.31 and 37,653.91 is: 56,490.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,400.75 : 189,632.31 = 37,653.91 : x
  2. Step 2: Convert to fraction form
    126,400.75/189,632.31 = 37,653.91/x
  3. Step 3: Cross multiply
    126,400.75x = 189,632.31 × 37,653.91
  4. Step 4: Simplify right side
    126,400.75x = 7,140,397,933.83
  5. Step 5: Solve for x
    x = 7,140,397,933.83/126,400.75
  6. Step 6: Final answer
    x = 56,490.15

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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.