Home / 126,623.16-189,962.82-47,738.07

Finding the Fourth Proportional to 126,623.16, 189,962.82 and 47,738.07

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Solution

The fourth proportional to 126,623.16, 189,962.82 and 47,738.07 is: 71,617.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,623.16 : 189,962.82 = 47,738.07 : x
  2. Step 2: Convert to fraction form
    126,623.16/189,962.82 = 47,738.07/x
  3. Step 3: Cross multiply
    126,623.16x = 189,962.82 × 47,738.07
  4. Step 4: Simplify right side
    126,623.16x = 9,068,458,398.56
  5. Step 5: Solve for x
    x = 9,068,458,398.56/126,623.16
  6. Step 6: Final answer
    x = 71,617.69

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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.