Home / 412,600.16-618,908.88-132,116.60

Finding the Fourth Proportional to 412,600.16, 618,908.88 and 132,116.60

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Solution

The fourth proportional to 412,600.16, 618,908.88 and 132,116.60 is: 198,177.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,600.16 : 618,908.88 = 132,116.60 : x
  2. Step 2: Convert to fraction form
    412,600.16/618,908.88 = 132,116.60/x
  3. Step 3: Cross multiply
    412,600.16x = 618,908.88 × 132,116.60
  4. Step 4: Simplify right side
    412,600.16x = 81,768,136,935.41
  5. Step 5: Solve for x
    x = 81,768,136,935.41/412,600.16
  6. Step 6: Final answer
    x = 198,177.67

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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.