Home / 118,571.51-163,714.26-73,311.55

Finding the Fourth Proportional to 118,571.51, 163,714.26 and 73,311.55

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Solution

The fourth proportional to 118,571.51, 163,714.26 and 73,311.55 is: 101,222.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,571.51 : 163,714.26 = 73,311.55 : x
  2. Step 2: Convert to fraction form
    118,571.51/163,714.26 = 73,311.55/x
  3. Step 3: Cross multiply
    118,571.51x = 163,714.26 × 73,311.55
  4. Step 4: Simplify right side
    118,571.51x = 12,002,146,023.34
  5. Step 5: Solve for x
    x = 12,002,146,023.34/118,571.51
  6. Step 6: Final answer
    x = 101,222.85

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1.5x scale

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.