Home / 140,140.94-193,307.99-99,867.60

Finding the Fourth Proportional to 140,140.94, 193,307.99 and 99,867.60

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Solution

The fourth proportional to 140,140.94, 193,307.99 and 99,867.60 is: 137,755.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,140.94 : 193,307.99 = 99,867.60 : x
  2. Step 2: Convert to fraction form
    140,140.94/193,307.99 = 99,867.60/x
  3. Step 3: Cross multiply
    140,140.94x = 193,307.99 × 99,867.60
  4. Step 4: Simplify right side
    140,140.94x = 19,305,204,522.79
  5. Step 5: Solve for x
    x = 19,305,204,522.79/140,140.94
  6. Step 6: Final answer
    x = 137,755.64

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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.