Home / 189,977.40-284,791.14-90,184.59

Finding the Fourth Proportional to 189,977.40, 284,791.14 and 90,184.59

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Solution

The fourth proportional to 189,977.40, 284,791.14 and 90,184.59 is: 135,193.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,977.40 : 284,791.14 = 90,184.59 : x
  2. Step 2: Convert to fraction form
    189,977.40/284,791.14 = 90,184.59/x
  3. Step 3: Cross multiply
    189,977.40x = 284,791.14 × 90,184.59
  4. Step 4: Simplify right side
    189,977.40x = 25,683,772,196.53
  5. Step 5: Solve for x
    x = 25,683,772,196.53/189,977.40
  6. Step 6: Final answer
    x = 135,193.83

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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.