Home / 121,786.40-182,485.20-101,957.60

Finding the Fourth Proportional to 121,786.40, 182,485.20 and 101,957.60

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Solution

The fourth proportional to 121,786.40, 182,485.20 and 101,957.60 is: 152,773.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,786.40 : 182,485.20 = 101,957.60 : x
  2. Step 2: Convert to fraction form
    121,786.40/182,485.20 = 101,957.60/x
  3. Step 3: Cross multiply
    121,786.40x = 182,485.20 × 101,957.60
  4. Step 4: Simplify right side
    121,786.40x = 18,605,753,027.52
  5. Step 5: Solve for x
    x = 18,605,753,027.52/121,786.40
  6. Step 6: Final answer
    x = 152,773.65

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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.