Home / 122,256.72-183,341.32-66,138.32

Finding the Fourth Proportional to 122,256.72, 183,341.32 and 66,138.32

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Solution

The fourth proportional to 122,256.72, 183,341.32 and 66,138.32 is: 99,183.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,256.72 : 183,341.32 = 66,138.32 : x
  2. Step 2: Convert to fraction form
    122,256.72/183,341.32 = 66,138.32/x
  3. Step 3: Cross multiply
    122,256.72x = 183,341.32 × 66,138.32
  4. Step 4: Simplify right side
    122,256.72x = 12,125,886,891.38
  5. Step 5: Solve for x
    x = 12,125,886,891.38/122,256.72
  6. Step 6: Final answer
    x = 99,183.81

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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.