Home / 143,965.69-198,565.54-105,713.24

Finding the Fourth Proportional to 143,965.69, 198,565.54 and 105,713.24

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Solution

The fourth proportional to 143,965.69, 198,565.54 and 105,713.24 is: 145,805.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,965.69 : 198,565.54 = 105,713.24 : x
  2. Step 2: Convert to fraction form
    143,965.69/198,565.54 = 105,713.24/x
  3. Step 3: Cross multiply
    143,965.69x = 198,565.54 × 105,713.24
  4. Step 4: Simplify right side
    143,965.69x = 20,991,005,328.64
  5. Step 5: Solve for x
    x = 20,991,005,328.64/143,965.69
  6. Step 6: Final answer
    x = 145,805.61

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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.