Home / 170,188.95-255,441.03-86,008.35

Finding the Fourth Proportional to 170,188.95, 255,441.03 and 86,008.35

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Solution

The fourth proportional to 170,188.95, 255,441.03 and 86,008.35 is: 129,092.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,188.95 : 255,441.03 = 86,008.35 : x
  2. Step 2: Convert to fraction form
    170,188.95/255,441.03 = 86,008.35/x
  3. Step 3: Cross multiply
    170,188.95x = 255,441.03 × 86,008.35
  4. Step 4: Simplify right side
    170,188.95x = 21,970,061,512.60
  5. Step 5: Solve for x
    x = 21,970,061,512.60/170,188.95
  6. Step 6: Final answer
    x = 129,092.17

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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.