Home / 147,936.08-221,845.80-85,650.32

Finding the Fourth Proportional to 147,936.08, 221,845.80 and 85,650.32

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Solution

The fourth proportional to 147,936.08, 221,845.80 and 85,650.32 is: 128,441.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,936.08 : 221,845.80 = 85,650.32 : x
  2. Step 2: Convert to fraction form
    147,936.08/221,845.80 = 85,650.32/x
  3. Step 3: Cross multiply
    147,936.08x = 221,845.80 × 85,650.32
  4. Step 4: Simplify right side
    147,936.08x = 19,001,163,760.66
  5. Step 5: Solve for x
    x = 19,001,163,760.66/147,936.08
  6. Step 6: Final answer
    x = 128,441.71

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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.