Home / 143,185.95-197,591.15-79,527.85

Finding the Fourth Proportional to 143,185.95, 197,591.15 and 79,527.85

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Solution

The fourth proportional to 143,185.95, 197,591.15 and 79,527.85 is: 109,745.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,185.95 : 197,591.15 = 79,527.85 : x
  2. Step 2: Convert to fraction form
    143,185.95/197,591.15 = 79,527.85/x
  3. Step 3: Cross multiply
    143,185.95x = 197,591.15 × 79,527.85
  4. Step 4: Simplify right side
    143,185.95x = 15,713,999,043.37
  5. Step 5: Solve for x
    x = 15,713,999,043.37/143,185.95
  6. Step 6: Final answer
    x = 109,745.40

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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.