Home / 171,370.80-257,066.28-66,190.32

Finding the Fourth Proportional to 171,370.80, 257,066.28 and 66,190.32

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Solution

The fourth proportional to 171,370.80, 257,066.28 and 66,190.32 is: 99,289.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,370.80 : 257,066.28 = 66,190.32 : x
  2. Step 2: Convert to fraction form
    171,370.80/257,066.28 = 66,190.32/x
  3. Step 3: Cross multiply
    171,370.80x = 257,066.28 × 66,190.32
  4. Step 4: Simplify right side
    171,370.80x = 17,015,299,334.41
  5. Step 5: Solve for x
    x = 17,015,299,334.41/171,370.80
  6. Step 6: Final answer
    x = 99,289.37

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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.