Home / 190,789.17-286,183.76-66,130.17

Finding the Fourth Proportional to 190,789.17, 286,183.76 and 66,130.17

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Solution

The fourth proportional to 190,789.17, 286,183.76 and 66,130.17 is: 99,195.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,789.17 : 286,183.76 = 66,130.17 : x
  2. Step 2: Convert to fraction form
    190,789.17/286,183.76 = 66,130.17/x
  3. Step 3: Cross multiply
    190,789.17x = 286,183.76 × 66,130.17
  4. Step 4: Simplify right side
    190,789.17x = 18,925,380,700.04
  5. Step 5: Solve for x
    x = 18,925,380,700.04/190,789.17
  6. Step 6: Final answer
    x = 99,195.26

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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.