Home / 154,173.34-212,742.88-86,183.16

Finding the Fourth Proportional to 154,173.34, 212,742.88 and 86,183.16

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Solution

The fourth proportional to 154,173.34, 212,742.88 and 86,183.16 is: 118,923.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,173.34 : 212,742.88 = 86,183.16 : x
  2. Step 2: Convert to fraction form
    154,173.34/212,742.88 = 86,183.16/x
  3. Step 3: Cross multiply
    154,173.34x = 212,742.88 × 86,183.16
  4. Step 4: Simplify right side
    154,173.34x = 18,334,853,665.90
  5. Step 5: Solve for x
    x = 18,334,853,665.90/154,173.34
  6. Step 6: Final answer
    x = 118,923.63

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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.