Home / 190,991.00-286,387.94-85,719.89

Finding the Fourth Proportional to 190,991.00, 286,387.94 and 85,719.89

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Solution

The fourth proportional to 190,991.00, 286,387.94 and 85,719.89 is: 128,535.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,991.00 : 286,387.94 = 85,719.89 : x
  2. Step 2: Convert to fraction form
    190,991.00/286,387.94 = 85,719.89/x
  3. Step 3: Cross multiply
    190,991.00x = 286,387.94 × 85,719.89
  4. Step 4: Simplify right side
    190,991.00x = 24,549,140,853.59
  5. Step 5: Solve for x
    x = 24,549,140,853.59/190,991.00
  6. Step 6: Final answer
    x = 128,535.59

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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.