Home / 143,112.80-197,359.66-104,315.36

Finding the Fourth Proportional to 143,112.80, 197,359.66 and 104,315.36

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Solution

The fourth proportional to 143,112.80, 197,359.66 and 104,315.36 is: 143,856.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,112.80 : 197,359.66 = 104,315.36 : x
  2. Step 2: Convert to fraction form
    143,112.80/197,359.66 = 104,315.36/x
  3. Step 3: Cross multiply
    143,112.80x = 197,359.66 × 104,315.36
  4. Step 4: Simplify right side
    143,112.80x = 20,587,643,982.38
  5. Step 5: Solve for x
    x = 20,587,643,982.38/143,112.80
  6. Step 6: Final answer
    x = 143,856.06

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1.5x scale

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.