Home / 158,134.41-218,219.27-86,512.59

Finding the Fourth Proportional to 158,134.41, 218,219.27 and 86,512.59

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Solution

The fourth proportional to 158,134.41, 218,219.27 and 86,512.59 is: 119,383.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,134.41 : 218,219.27 = 86,512.59 : x
  2. Step 2: Convert to fraction form
    158,134.41/218,219.27 = 86,512.59/x
  3. Step 3: Cross multiply
    158,134.41x = 218,219.27 × 86,512.59
  4. Step 4: Simplify right side
    158,134.41x = 18,878,713,803.05
  5. Step 5: Solve for x
    x = 18,878,713,803.05/158,134.41
  6. Step 6: Final answer
    x = 119,383.97

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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.