Home / 149,080.32-223,603.20-81,632.64

Finding the Fourth Proportional to 149,080.32, 223,603.20 and 81,632.64

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Solution

The fourth proportional to 149,080.32, 223,603.20 and 81,632.64 is: 122,439.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,080.32 : 223,603.20 = 81,632.64 : x
  2. Step 2: Convert to fraction form
    149,080.32/223,603.20 = 81,632.64/x
  3. Step 3: Cross multiply
    149,080.32x = 223,603.20 × 81,632.64
  4. Step 4: Simplify right side
    149,080.32x = 18,253,319,528.45
  5. Step 5: Solve for x
    x = 18,253,319,528.45/149,080.32
  6. Step 6: Final answer
    x = 122,439.50

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1.5x scale

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.