Home / 128,927.40-193,391.10-117,846.60

Finding the Fourth Proportional to 128,927.40, 193,391.10 and 117,846.60

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Solution

The fourth proportional to 128,927.40, 193,391.10 and 117,846.60 is: 176,769.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,927.40 : 193,391.10 = 117,846.60 : x
  2. Step 2: Convert to fraction form
    128,927.40/193,391.10 = 117,846.60/x
  3. Step 3: Cross multiply
    128,927.40x = 193,391.10 × 117,846.60
  4. Step 4: Simplify right side
    128,927.40x = 22,790,483,605.26
  5. Step 5: Solve for x
    x = 22,790,483,605.26/128,927.40
  6. Step 6: Final answer
    x = 176,769.90

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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.