Home / 143,532.36-198,071.55-83,105.64

Finding the Fourth Proportional to 143,532.36, 198,071.55 and 83,105.64

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Solution

The fourth proportional to 143,532.36, 198,071.55 and 83,105.64 is: 114,683.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,532.36 : 198,071.55 = 83,105.64 : x
  2. Step 2: Convert to fraction form
    143,532.36/198,071.55 = 83,105.64/x
  3. Step 3: Cross multiply
    143,532.36x = 198,071.55 × 83,105.64
  4. Step 4: Simplify right side
    143,532.36x = 16,460,862,928.54
  5. Step 5: Solve for x
    x = 16,460,862,928.54/143,532.36
  6. Step 6: Final answer
    x = 114,683.98

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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.