Home / 158,560.14-218,811.30-86,939.94

Finding the Fourth Proportional to 158,560.14, 218,811.30 and 86,939.94

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Solution

The fourth proportional to 158,560.14, 218,811.30 and 86,939.94 is: 119,976.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,560.14 : 218,811.30 = 86,939.94 : x
  2. Step 2: Convert to fraction form
    158,560.14/218,811.30 = 86,939.94/x
  3. Step 3: Cross multiply
    158,560.14x = 218,811.30 × 86,939.94
  4. Step 4: Simplify right side
    158,560.14x = 19,023,441,293.32
  5. Step 5: Solve for x
    x = 19,023,441,293.32/158,560.14
  6. Step 6: Final answer
    x = 119,976.19

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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.