Home / 126,537.60-189,879.30-47,708.40

Finding the Fourth Proportional to 126,537.60, 189,879.30 and 47,708.40

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Solution

The fourth proportional to 126,537.60, 189,879.30 and 47,708.40 is: 71,590.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,537.60 : 189,879.30 = 47,708.40 : x
  2. Step 2: Convert to fraction form
    126,537.60/189,879.30 = 47,708.40/x
  3. Step 3: Cross multiply
    126,537.60x = 189,879.30 × 47,708.40
  4. Step 4: Simplify right side
    126,537.60x = 9,058,837,596.12
  5. Step 5: Solve for x
    x = 9,058,837,596.12/126,537.60
  6. Step 6: Final answer
    x = 71,590.09

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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.