Home / 143,389.18-197,926.29-86,800.57

Finding the Fourth Proportional to 143,389.18, 197,926.29 and 86,800.57

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Solution

The fourth proportional to 143,389.18, 197,926.29 and 86,800.57 is: 119,814.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,389.18 : 197,926.29 = 86,800.57 : x
  2. Step 2: Convert to fraction form
    143,389.18/197,926.29 = 86,800.57/x
  3. Step 3: Cross multiply
    143,389.18x = 197,926.29 × 86,800.57
  4. Step 4: Simplify right side
    143,389.18x = 17,180,114,789.99
  5. Step 5: Solve for x
    x = 17,180,114,789.99/143,389.18
  6. Step 6: Final answer
    x = 119,814.58

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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.