Home / 114,731.51-171,778.32-86,566.59

Finding the Fourth Proportional to 114,731.51, 171,778.32 and 86,566.59

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Solution

The fourth proportional to 114,731.51, 171,778.32 and 86,566.59 is: 129,609.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,731.51 : 171,778.32 = 86,566.59 : x
  2. Step 2: Convert to fraction form
    114,731.51/171,778.32 = 86,566.59/x
  3. Step 3: Cross multiply
    114,731.51x = 171,778.32 × 86,566.59
  4. Step 4: Simplify right side
    114,731.51x = 14,870,263,398.33
  5. Step 5: Solve for x
    x = 14,870,263,398.33/114,731.51
  6. Step 6: Final answer
    x = 129,609.24

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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.