Home / 111,714.12-154,168.11-60,729.75

Finding the Fourth Proportional to 111,714.12, 154,168.11 and 60,729.75

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Solution

The fourth proportional to 111,714.12, 154,168.11 and 60,729.75 is: 83,808.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,714.12 : 154,168.11 = 60,729.75 : x
  2. Step 2: Convert to fraction form
    111,714.12/154,168.11 = 60,729.75/x
  3. Step 3: Cross multiply
    111,714.12x = 154,168.11 × 60,729.75
  4. Step 4: Simplify right side
    111,714.12x = 9,362,590,778.27
  5. Step 5: Solve for x
    x = 9,362,590,778.27/111,714.12
  6. Step 6: Final answer
    x = 83,808.48

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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.