Home / 143,595.26-198,183.74-86,266.50

Finding the Fourth Proportional to 143,595.26, 198,183.74 and 86,266.50

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Solution

The fourth proportional to 143,595.26, 198,183.74 and 86,266.50 is: 119,061.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,595.26 : 198,183.74 = 86,266.50 : x
  2. Step 2: Convert to fraction form
    143,595.26/198,183.74 = 86,266.50/x
  3. Step 3: Cross multiply
    143,595.26x = 198,183.74 × 86,266.50
  4. Step 4: Simplify right side
    143,595.26x = 17,096,616,184.46
  5. Step 5: Solve for x
    x = 17,096,616,184.46/143,595.26
  6. Step 6: Final answer
    x = 119,061.15

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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.