Home / 113,533.20-156,651.84-65,783.70

Finding the Fourth Proportional to 113,533.20, 156,651.84 and 65,783.70

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Solution

The fourth proportional to 113,533.20, 156,651.84 and 65,783.70 is: 90,767.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,533.20 : 156,651.84 = 65,783.70 : x
  2. Step 2: Convert to fraction form
    113,533.20/156,651.84 = 65,783.70/x
  3. Step 3: Cross multiply
    113,533.20x = 156,651.84 × 65,783.70
  4. Step 4: Simplify right side
    113,533.20x = 10,305,137,647.01
  5. Step 5: Solve for x
    x = 10,305,137,647.01/113,533.20
  6. Step 6: Final answer
    x = 90,767.61

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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.