Home / 143,774.88-198,406.66-80,111.32

Finding the Fourth Proportional to 143,774.88, 198,406.66 and 80,111.32

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Solution

The fourth proportional to 143,774.88, 198,406.66 and 80,111.32 is: 110,552.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,774.88 : 198,406.66 = 80,111.32 : x
  2. Step 2: Convert to fraction form
    143,774.88/198,406.66 = 80,111.32/x
  3. Step 3: Cross multiply
    143,774.88x = 198,406.66 × 80,111.32
  4. Step 4: Simplify right side
    143,774.88x = 15,894,619,429.39
  5. Step 5: Solve for x
    x = 15,894,619,429.39/143,774.88
  6. Step 6: Final answer
    x = 110,552.13

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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.