Home / 143,188.36-197,436.89-91,435.74

Finding the Fourth Proportional to 143,188.36, 197,436.89 and 91,435.74

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Solution

The fourth proportional to 143,188.36, 197,436.89 and 91,435.74 is: 126,077.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,188.36 : 197,436.89 = 91,435.74 : x
  2. Step 2: Convert to fraction form
    143,188.36/197,436.89 = 91,435.74/x
  3. Step 3: Cross multiply
    143,188.36x = 197,436.89 × 91,435.74
  4. Step 4: Simplify right side
    143,188.36x = 18,052,787,628.65
  5. Step 5: Solve for x
    x = 18,052,787,628.65/143,188.36
  6. Step 6: Final answer
    x = 126,077.20

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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.