Home / 147,749.15-203,898.69-83,219.60

Finding the Fourth Proportional to 147,749.15, 203,898.69 and 83,219.60

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Solution

The fourth proportional to 147,749.15, 203,898.69 and 83,219.60 is: 114,845.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,749.15 : 203,898.69 = 83,219.60 : x
  2. Step 2: Convert to fraction form
    147,749.15/203,898.69 = 83,219.60/x
  3. Step 3: Cross multiply
    147,749.15x = 203,898.69 × 83,219.60
  4. Step 4: Simplify right side
    147,749.15x = 16,968,366,402.83
  5. Step 5: Solve for x
    x = 16,968,366,402.83/147,749.15
  6. Step 6: Final answer
    x = 114,845.78

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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.