Home / 154,216.28-212,799.72-85,296.44

Finding the Fourth Proportional to 154,216.28, 212,799.72 and 85,296.44

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Solution

The fourth proportional to 154,216.28, 212,799.72 and 85,296.44 is: 117,698.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,216.28 : 212,799.72 = 85,296.44 : x
  2. Step 2: Convert to fraction form
    154,216.28/212,799.72 = 85,296.44/x
  3. Step 3: Cross multiply
    154,216.28x = 212,799.72 × 85,296.44
  4. Step 4: Simplify right side
    154,216.28x = 18,151,058,549.00
  5. Step 5: Solve for x
    x = 18,151,058,549.00/154,216.28
  6. Step 6: Final answer
    x = 117,698.72

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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.