Home / 154,185.84-231,297.12-65,427.60

Finding the Fourth Proportional to 154,185.84, 231,297.12 and 65,427.60

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Solution

The fourth proportional to 154,185.84, 231,297.12 and 65,427.60 is: 98,149.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,185.84 : 231,297.12 = 65,427.60 : x
  2. Step 2: Convert to fraction form
    154,185.84/231,297.12 = 65,427.60/x
  3. Step 3: Cross multiply
    154,185.84x = 231,297.12 × 65,427.60
  4. Step 4: Simplify right side
    154,185.84x = 15,133,215,448.51
  5. Step 5: Solve for x
    x = 15,133,215,448.51/154,185.84
  6. Step 6: Final answer
    x = 98,149.19

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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.