Home / 158,252.19-218,393.18-86,632.21

Finding the Fourth Proportional to 158,252.19, 218,393.18 and 86,632.21

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Solution

The fourth proportional to 158,252.19, 218,393.18 and 86,632.21 is: 119,555.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,252.19 : 218,393.18 = 86,632.21 : x
  2. Step 2: Convert to fraction form
    158,252.19/218,393.18 = 86,632.21/x
  3. Step 3: Cross multiply
    158,252.19x = 218,393.18 × 86,632.21
  4. Step 4: Simplify right side
    158,252.19x = 18,919,883,832.33
  5. Step 5: Solve for x
    x = 18,919,883,832.33/158,252.19
  6. Step 6: Final answer
    x = 119,555.27

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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.