Home / 190,948.95-285,987.35-91,179.37

Finding the Fourth Proportional to 190,948.95, 285,987.35 and 91,179.37

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Solution

The fourth proportional to 190,948.95, 285,987.35 and 91,179.37 is: 136,560.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,948.95 : 285,987.35 = 91,179.37 : x
  2. Step 2: Convert to fraction form
    190,948.95/285,987.35 = 91,179.37/x
  3. Step 3: Cross multiply
    190,948.95x = 285,987.35 × 91,179.37
  4. Step 4: Simplify right side
    190,948.95x = 26,076,146,628.92
  5. Step 5: Solve for x
    x = 26,076,146,628.92/190,948.95
  6. Step 6: Final answer
    x = 136,560.83

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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.