Home / 257,173.07-354,895.08-142,451.33

Finding the Fourth Proportional to 257,173.07, 354,895.08 and 142,451.33

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Solution

The fourth proportional to 257,173.07, 354,895.08 and 142,451.33 is: 196,580.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,173.07 : 354,895.08 = 142,451.33 : x
  2. Step 2: Convert to fraction form
    257,173.07/354,895.08 = 142,451.33/x
  3. Step 3: Cross multiply
    257,173.07x = 354,895.08 × 142,451.33
  4. Step 4: Simplify right side
    257,173.07x = 50,555,274,381.98
  5. Step 5: Solve for x
    x = 50,555,274,381.98/257,173.07
  6. Step 6: Final answer
    x = 196,580.75

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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.