Home / 128,862.48-193,300.20-44,626.80

Finding the Fourth Proportional to 128,862.48, 193,300.20 and 44,626.80

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Solution

The fourth proportional to 128,862.48, 193,300.20 and 44,626.80 is: 66,942.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,862.48 : 193,300.20 = 44,626.80 : x
  2. Step 2: Convert to fraction form
    128,862.48/193,300.20 = 44,626.80/x
  3. Step 3: Cross multiply
    128,862.48x = 193,300.20 × 44,626.80
  4. Step 4: Simplify right side
    128,862.48x = 8,626,369,365.36
  5. Step 5: Solve for x
    x = 8,626,369,365.36/128,862.48
  6. Step 6: Final answer
    x = 66,942.44

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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.