Home / 158,192.45-218,302.67-86,571.04

Finding the Fourth Proportional to 158,192.45, 218,302.67 and 86,571.04

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Solution

The fourth proportional to 158,192.45, 218,302.67 and 86,571.04 is: 119,466.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,192.45 : 218,302.67 = 86,571.04 : x
  2. Step 2: Convert to fraction form
    158,192.45/218,302.67 = 86,571.04/x
  3. Step 3: Cross multiply
    158,192.45x = 218,302.67 × 86,571.04
  4. Step 4: Simplify right side
    158,192.45x = 18,898,687,652.31
  5. Step 5: Solve for x
    x = 18,898,687,652.31/158,192.45
  6. Step 6: Final answer
    x = 119,466.43

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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.