Home / 134,099.20-201,278.40-81,611.20

Finding the Fourth Proportional to 134,099.20, 201,278.40 and 81,611.20

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Solution

The fourth proportional to 134,099.20, 201,278.40 and 81,611.20 is: 122,495.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,099.20 : 201,278.40 = 81,611.20 : x
  2. Step 2: Convert to fraction form
    134,099.20/201,278.40 = 81,611.20/x
  3. Step 3: Cross multiply
    134,099.20x = 201,278.40 × 81,611.20
  4. Step 4: Simplify right side
    134,099.20x = 16,426,571,758.08
  5. Step 5: Solve for x
    x = 16,426,571,758.08/134,099.20
  6. Step 6: Final answer
    x = 122,495.67

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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.