Home / 127,319.40-190,979.10-113,541.30

Finding the Fourth Proportional to 127,319.40, 190,979.10 and 113,541.30

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Solution

The fourth proportional to 127,319.40, 190,979.10 and 113,541.30 is: 170,311.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,319.40 : 190,979.10 = 113,541.30 : x
  2. Step 2: Convert to fraction form
    127,319.40/190,979.10 = 113,541.30/x
  3. Step 3: Cross multiply
    127,319.40x = 190,979.10 × 113,541.30
  4. Step 4: Simplify right side
    127,319.40x = 21,684,015,286.83
  5. Step 5: Solve for x
    x = 21,684,015,286.83/127,319.40
  6. Step 6: Final answer
    x = 170,311.95

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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.