Home / 190,621.16-286,039.26-189,115.88

Finding the Fourth Proportional to 190,621.16, 286,039.26 and 189,115.88

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Solution

The fourth proportional to 190,621.16, 286,039.26 and 189,115.88 is: 283,780.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,621.16 : 286,039.26 = 189,115.88 : x
  2. Step 2: Convert to fraction form
    190,621.16/286,039.26 = 189,115.88/x
  3. Step 3: Cross multiply
    190,621.16x = 286,039.26 × 189,115.88
  4. Step 4: Simplify right side
    190,621.16x = 54,094,566,369.45
  5. Step 5: Solve for x
    x = 54,094,566,369.45/190,621.16
  6. Step 6: Final answer
    x = 283,780.49

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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.