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Finding the Fourth Proportional to 110,903.80, 166,323.30 and 39,818.20

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Solution

The fourth proportional to 110,903.80, 166,323.30 and 39,818.20 is: 59,715.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,903.80 : 166,323.30 = 39,818.20 : x
  2. Step 2: Convert to fraction form
    110,903.80/166,323.30 = 39,818.20/x
  3. Step 3: Cross multiply
    110,903.80x = 166,323.30 × 39,818.20
  4. Step 4: Simplify right side
    110,903.80x = 6,622,694,424.06
  5. Step 5: Solve for x
    x = 6,622,694,424.06/110,903.80
  6. Step 6: Final answer
    x = 59,715.67

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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.