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Finding the Fourth Proportional to 115,852.65, 159,879.07 and 65,551.65

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Solution

The fourth proportional to 115,852.65, 159,879.07 and 65,551.65 is: 90,462.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,852.65 : 159,879.07 = 65,551.65 : x
  2. Step 2: Convert to fraction form
    115,852.65/159,879.07 = 65,551.65/x
  3. Step 3: Cross multiply
    115,852.65x = 159,879.07 × 65,551.65
  4. Step 4: Simplify right side
    115,852.65x = 10,480,336,321.36
  5. Step 5: Solve for x
    x = 10,480,336,321.36/115,852.65
  6. Step 6: Final answer
    x = 90,462.64

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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.