Home / 170,186.94-255,438.04-86,006.34

Finding the Fourth Proportional to 170,186.94, 255,438.04 and 86,006.34

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Solution

The fourth proportional to 170,186.94, 255,438.04 and 86,006.34 is: 129,089.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,186.94 : 255,438.04 = 86,006.34 : x
  2. Step 2: Convert to fraction form
    170,186.94/255,438.04 = 86,006.34/x
  3. Step 3: Cross multiply
    170,186.94x = 255,438.04 × 86,006.34
  4. Step 4: Simplify right side
    170,186.94x = 21,969,290,917.17
  5. Step 5: Solve for x
    x = 21,969,290,917.17/170,186.94
  6. Step 6: Final answer
    x = 129,089.17

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1.5x scale

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.