Home / 143,856.77-198,515.07-80,182.26

Finding the Fourth Proportional to 143,856.77, 198,515.07 and 80,182.26

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Solution

The fourth proportional to 143,856.77, 198,515.07 and 80,182.26 is: 110,647.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,856.77 : 198,515.07 = 80,182.26 : x
  2. Step 2: Convert to fraction form
    143,856.77/198,515.07 = 80,182.26/x
  3. Step 3: Cross multiply
    143,856.77x = 198,515.07 × 80,182.26
  4. Step 4: Simplify right side
    143,856.77x = 15,917,386,956.66
  5. Step 5: Solve for x
    x = 15,917,386,956.66/143,856.77
  6. Step 6: Final answer
    x = 110,647.47

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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.