Home / 140,065.36-193,285.83-79,642.60

Finding the Fourth Proportional to 140,065.36, 193,285.83 and 79,642.60

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Solution

The fourth proportional to 140,065.36, 193,285.83 and 79,642.60 is: 109,904.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,065.36 : 193,285.83 = 79,642.60 : x
  2. Step 2: Convert to fraction form
    140,065.36/193,285.83 = 79,642.60/x
  3. Step 3: Cross multiply
    140,065.36x = 193,285.83 × 79,642.60
  4. Step 4: Simplify right side
    140,065.36x = 15,393,786,044.36
  5. Step 5: Solve for x
    x = 15,393,786,044.36/140,065.36
  6. Step 6: Final answer
    x = 109,904.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.