Home / 158,239.02-218,370.13-86,623.43

Finding the Fourth Proportional to 158,239.02, 218,370.13 and 86,623.43

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Solution

The fourth proportional to 158,239.02, 218,370.13 and 86,623.43 is: 119,540.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,239.02 : 218,370.13 = 86,623.43 : x
  2. Step 2: Convert to fraction form
    158,239.02/218,370.13 = 86,623.43/x
  3. Step 3: Cross multiply
    158,239.02x = 218,370.13 × 86,623.43
  4. Step 4: Simplify right side
    158,239.02x = 18,915,968,361.74
  5. Step 5: Solve for x
    x = 18,915,968,361.74/158,239.02
  6. Step 6: Final answer
    x = 119,540.48

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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.