Home / 158,192.83-218,303.18-86,571.41

Finding the Fourth Proportional to 158,192.83, 218,303.18 and 86,571.41

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Solution

The fourth proportional to 158,192.83, 218,303.18 and 86,571.41 is: 119,466.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,192.83 : 218,303.18 = 86,571.41 : x
  2. Step 2: Convert to fraction form
    158,192.83/218,303.18 = 86,571.41/x
  3. Step 3: Cross multiply
    158,192.83x = 218,303.18 × 86,571.41
  4. Step 4: Simplify right side
    158,192.83x = 18,898,814,100.08
  5. Step 5: Solve for x
    x = 18,898,814,100.08/158,192.83
  6. Step 6: Final answer
    x = 119,466.95

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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.