Home / 111,953.12-167,929.44-76,786.16

Finding the Fourth Proportional to 111,953.12, 167,929.44 and 76,786.16

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Solution

The fourth proportional to 111,953.12, 167,929.44 and 76,786.16 is: 115,179.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,953.12 : 167,929.44 = 76,786.16 : x
  2. Step 2: Convert to fraction form
    111,953.12/167,929.44 = 76,786.16/x
  3. Step 3: Cross multiply
    111,953.12x = 167,929.44 × 76,786.16
  4. Step 4: Simplify right side
    111,953.12x = 12,894,656,848.55
  5. Step 5: Solve for x
    x = 12,894,656,848.55/111,953.12
  6. Step 6: Final answer
    x = 115,179.08

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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.