Home / 131,551.44-197,376.57-78,998.64

Finding the Fourth Proportional to 131,551.44, 197,376.57 and 78,998.64

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Solution

The fourth proportional to 131,551.44, 197,376.57 and 78,998.64 is: 118,527.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,551.44 : 197,376.57 = 78,998.64 : x
  2. Step 2: Convert to fraction form
    131,551.44/197,376.57 = 78,998.64/x
  3. Step 3: Cross multiply
    131,551.44x = 197,376.57 × 78,998.64
  4. Step 4: Simplify right side
    131,551.44x = 15,592,480,597.86
  5. Step 5: Solve for x
    x = 15,592,480,597.86/131,551.44
  6. Step 6: Final answer
    x = 118,527.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.