Home / 128,288.96-192,461.79-44,047.21

Finding the Fourth Proportional to 128,288.96, 192,461.79 and 44,047.21

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Solution

The fourth proportional to 128,288.96, 192,461.79 and 44,047.21 is: 66,080.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,288.96 : 192,461.79 = 44,047.21 : x
  2. Step 2: Convert to fraction form
    128,288.96/192,461.79 = 44,047.21/x
  3. Step 3: Cross multiply
    128,288.96x = 192,461.79 × 44,047.21
  4. Step 4: Simplify right side
    128,288.96x = 8,477,403,918.80
  5. Step 5: Solve for x
    x = 8,477,403,918.80/128,288.96
  6. Step 6: Final answer
    x = 66,080.54

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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.