Home / 77,146.20-106,470.59-43,163.30

Finding the Fourth Proportional to 77,146.20, 106,470.59 and 43,163.30

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Solution

The fourth proportional to 77,146.20, 106,470.59 and 43,163.30 is: 59,570.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,146.20 : 106,470.59 = 43,163.30 : x
  2. Step 2: Convert to fraction form
    77,146.20/106,470.59 = 43,163.30/x
  3. Step 3: Cross multiply
    77,146.20x = 106,470.59 × 43,163.30
  4. Step 4: Simplify right side
    77,146.20x = 4,595,622,017.35
  5. Step 5: Solve for x
    x = 4,595,622,017.35/77,146.20
  6. Step 6: Final answer
    x = 59,570.30

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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.