Home / 190,309.95-285,077.39-90,166.59

Finding the Fourth Proportional to 190,309.95, 285,077.39 and 90,166.59

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Solution

The fourth proportional to 190,309.95, 285,077.39 and 90,166.59 is: 135,066.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,309.95 : 285,077.39 = 90,166.59 : x
  2. Step 2: Convert to fraction form
    190,309.95/285,077.39 = 90,166.59/x
  3. Step 3: Cross multiply
    190,309.95x = 285,077.39 × 90,166.59
  4. Step 4: Simplify right side
    190,309.95x = 25,704,455,691.57
  5. Step 5: Solve for x
    x = 25,704,455,691.57/190,309.95
  6. Step 6: Final answer
    x = 135,066.27

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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.