Home / 120,823.48-166,749.47-73,103.14

Finding the Fourth Proportional to 120,823.48, 166,749.47 and 73,103.14

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Solution

The fourth proportional to 120,823.48, 166,749.47 and 73,103.14 is: 100,890.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,823.48 : 166,749.47 = 73,103.14 : x
  2. Step 2: Convert to fraction form
    120,823.48/166,749.47 = 73,103.14/x
  3. Step 3: Cross multiply
    120,823.48x = 166,749.47 × 73,103.14
  4. Step 4: Simplify right side
    120,823.48x = 12,189,909,850.34
  5. Step 5: Solve for x
    x = 12,189,909,850.34/120,823.48
  6. Step 6: Final answer
    x = 100,890.24

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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.