Home / 168,921.12-233,074.12-100,927.88

Finding the Fourth Proportional to 168,921.12, 233,074.12 and 100,927.88

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Solution

The fourth proportional to 168,921.12, 233,074.12 and 100,927.88 is: 139,258.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,921.12 : 233,074.12 = 100,927.88 : x
  2. Step 2: Convert to fraction form
    168,921.12/233,074.12 = 100,927.88/x
  3. Step 3: Cross multiply
    168,921.12x = 233,074.12 × 100,927.88
  4. Step 4: Simplify right side
    168,921.12x = 23,523,676,814.47
  5. Step 5: Solve for x
    x = 23,523,676,814.47/168,921.12
  6. Step 6: Final answer
    x = 139,258.35

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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.