Home / 131,090.08-196,900.08-78,599.20

Finding the Fourth Proportional to 131,090.08, 196,900.08 and 78,599.20

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Solution

The fourth proportional to 131,090.08, 196,900.08 and 78,599.20 is: 118,057.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,090.08 : 196,900.08 = 78,599.20 : x
  2. Step 2: Convert to fraction form
    131,090.08/196,900.08 = 78,599.20/x
  3. Step 3: Cross multiply
    131,090.08x = 196,900.08 × 78,599.20
  4. Step 4: Simplify right side
    131,090.08x = 15,476,188,767.94
  5. Step 5: Solve for x
    x = 15,476,188,767.94/131,090.08
  6. Step 6: Final answer
    x = 118,057.67

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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.