Home / 119,583.78-165,022.08-65,868.66

Finding the Fourth Proportional to 119,583.78, 165,022.08 and 65,868.66

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Solution

The fourth proportional to 119,583.78, 165,022.08 and 65,868.66 is: 90,896.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,583.78 : 165,022.08 = 65,868.66 : x
  2. Step 2: Convert to fraction form
    119,583.78/165,022.08 = 65,868.66/x
  3. Step 3: Cross multiply
    119,583.78x = 165,022.08 × 65,868.66
  4. Step 4: Simplify right side
    119,583.78x = 10,869,783,280.01
  5. Step 5: Solve for x
    x = 10,869,783,280.01/119,583.78
  6. Step 6: Final answer
    x = 90,896.80

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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.