Home / 118,183.36-163,129.42-72,875.56

Finding the Fourth Proportional to 118,183.36, 163,129.42 and 72,875.56

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Solution

The fourth proportional to 118,183.36, 163,129.42 and 72,875.56 is: 100,590.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,183.36 : 163,129.42 = 72,875.56 : x
  2. Step 2: Convert to fraction form
    118,183.36/163,129.42 = 72,875.56/x
  3. Step 3: Cross multiply
    118,183.36x = 163,129.42 × 72,875.56
  4. Step 4: Simplify right side
    118,183.36x = 11,888,147,834.98
  5. Step 5: Solve for x
    x = 11,888,147,834.98/118,183.36
  6. Step 6: Final answer
    x = 100,590.71

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1.5x scale

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.