Home / 109,664.24-151,336.69-61,920.67

Finding the Fourth Proportional to 109,664.24, 151,336.69 and 61,920.67

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Solution

The fourth proportional to 109,664.24, 151,336.69 and 61,920.67 is: 85,450.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,664.24 : 151,336.69 = 61,920.67 : x
  2. Step 2: Convert to fraction form
    109,664.24/151,336.69 = 61,920.67/x
  3. Step 3: Cross multiply
    109,664.24x = 151,336.69 × 61,920.67
  4. Step 4: Simplify right side
    109,664.24x = 9,370,869,240.38
  5. Step 5: Solve for x
    x = 9,370,869,240.38/109,664.24
  6. Step 6: Final answer
    x = 85,450.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.