Home / 98,768.22-148,185.58-31,311.28

Finding the Fourth Proportional to 98,768.22, 148,185.58 and 31,311.28

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Solution

The fourth proportional to 98,768.22, 148,185.58 and 31,311.28 is: 46,977.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,768.22 : 148,185.58 = 31,311.28 : x
  2. Step 2: Convert to fraction form
    98,768.22/148,185.58 = 31,311.28/x
  3. Step 3: Cross multiply
    98,768.22x = 148,185.58 × 31,311.28
  4. Step 4: Simplify right side
    98,768.22x = 4,639,880,187.34
  5. Step 5: Solve for x
    x = 4,639,880,187.34/98,768.22
  6. Step 6: Final answer
    x = 46,977.46

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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.