Home / 121,004.12-166,967.34-67,289.60

Finding the Fourth Proportional to 121,004.12, 166,967.34 and 67,289.60

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Solution

The fourth proportional to 121,004.12, 166,967.34 and 67,289.60 is: 92,849.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,004.12 : 166,967.34 = 67,289.60 : x
  2. Step 2: Convert to fraction form
    121,004.12/166,967.34 = 67,289.60/x
  3. Step 3: Cross multiply
    121,004.12x = 166,967.34 × 67,289.60
  4. Step 4: Simplify right side
    121,004.12x = 11,235,165,521.66
  5. Step 5: Solve for x
    x = 11,235,165,521.66/121,004.12
  6. Step 6: Final answer
    x = 92,849.45

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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.