Home / 143,816.23-198,466.57-86,456.17

Finding the Fourth Proportional to 143,816.23, 198,466.57 and 86,456.17

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Solution

The fourth proportional to 143,816.23, 198,466.57 and 86,456.17 is: 119,309.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,816.23 : 198,466.57 = 86,456.17 : x
  2. Step 2: Convert to fraction form
    143,816.23/198,466.57 = 86,456.17/x
  3. Step 3: Cross multiply
    143,816.23x = 198,466.57 × 86,456.17
  4. Step 4: Simplify right side
    143,816.23x = 17,158,659,515.24
  5. Step 5: Solve for x
    x = 17,158,659,515.24/143,816.23
  6. Step 6: Final answer
    x = 119,309.62

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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.