Home / 103,639.55-154,651.01-92,469.45

Finding the Fourth Proportional to 103,639.55, 154,651.01 and 92,469.45

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Solution

The fourth proportional to 103,639.55, 154,651.01 and 92,469.45 is: 137,982.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,639.55 : 154,651.01 = 92,469.45 : x
  2. Step 2: Convert to fraction form
    103,639.55/154,651.01 = 92,469.45/x
  3. Step 3: Cross multiply
    103,639.55x = 154,651.01 × 92,469.45
  4. Step 4: Simplify right side
    103,639.55x = 14,300,493,836.64
  5. Step 5: Solve for x
    x = 14,300,493,836.64/103,639.55
  6. Step 6: Final answer
    x = 137,982.98

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.