Home / 121,628.45-181,950.60-106,866.20

Finding the Fourth Proportional to 121,628.45, 181,950.60 and 106,866.20

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Solution

The fourth proportional to 121,628.45, 181,950.60 and 106,866.20 is: 159,866.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,628.45 : 181,950.60 = 106,866.20 : x
  2. Step 2: Convert to fraction form
    121,628.45/181,950.60 = 106,866.20/x
  3. Step 3: Cross multiply
    121,628.45x = 181,950.60 × 106,866.20
  4. Step 4: Simplify right side
    121,628.45x = 19,444,369,209.72
  5. Step 5: Solve for x
    x = 19,444,369,209.72/121,628.45
  6. Step 6: Final answer
    x = 159,866.95

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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.