Home / 122,214.66-183,496.95-90,721.86

Finding the Fourth Proportional to 122,214.66, 183,496.95 and 90,721.86

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Solution

The fourth proportional to 122,214.66, 183,496.95 and 90,721.86 is: 136,212.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,214.66 : 183,496.95 = 90,721.86 : x
  2. Step 2: Convert to fraction form
    122,214.66/183,496.95 = 90,721.86/x
  3. Step 3: Cross multiply
    122,214.66x = 183,496.95 × 90,721.86
  4. Step 4: Simplify right side
    122,214.66x = 16,647,184,608.33
  5. Step 5: Solve for x
    x = 16,647,184,608.33/122,214.66
  6. Step 6: Final answer
    x = 136,212.67

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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.