Home / 158,440.06-218,643.51-86,816.62

Finding the Fourth Proportional to 158,440.06, 218,643.51 and 86,816.62

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Solution

The fourth proportional to 158,440.06, 218,643.51 and 86,816.62 is: 119,804.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,440.06 : 218,643.51 = 86,816.62 : x
  2. Step 2: Convert to fraction form
    158,440.06/218,643.51 = 86,816.62/x
  3. Step 3: Cross multiply
    158,440.06x = 218,643.51 × 86,816.62
  4. Step 4: Simplify right side
    158,440.06x = 18,981,890,523.14
  5. Step 5: Solve for x
    x = 18,981,890,523.14/158,440.06
  6. Step 6: Final answer
    x = 119,804.87

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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.