Home / 143,189.43-197,622.95-103,036.11

Finding the Fourth Proportional to 143,189.43, 197,622.95 and 103,036.11

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Solution

The fourth proportional to 143,189.43, 197,622.95 and 103,036.11 is: 142,205.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,189.43 : 197,622.95 = 103,036.11 : x
  2. Step 2: Convert to fraction form
    143,189.43/197,622.95 = 103,036.11/x
  3. Step 3: Cross multiply
    143,189.43x = 197,622.95 × 103,036.11
  4. Step 4: Simplify right side
    143,189.43x = 20,362,300,014.72
  5. Step 5: Solve for x
    x = 20,362,300,014.72/143,189.43
  6. Step 6: Final answer
    x = 142,205.33

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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.