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Finding the Fourth Proportional to 130,486.56, 195,729.82 and 36,993.12

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Solution

The fourth proportional to 130,486.56, 195,729.82 and 36,993.12 is: 55,489.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,486.56 : 195,729.82 = 36,993.12 : x
  2. Step 2: Convert to fraction form
    130,486.56/195,729.82 = 36,993.12/x
  3. Step 3: Cross multiply
    130,486.56x = 195,729.82 × 36,993.12
  4. Step 4: Simplify right side
    130,486.56x = 7,240,656,718.84
  5. Step 5: Solve for x
    x = 7,240,656,718.84/130,486.56
  6. Step 6: Final answer
    x = 55,489.67

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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.