Home / 190,744.50-286,167.78-66,085.50

Finding the Fourth Proportional to 190,744.50, 286,167.78 and 66,085.50

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Solution

The fourth proportional to 190,744.50, 286,167.78 and 66,085.50 is: 99,145.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,744.50 : 286,167.78 = 66,085.50 : x
  2. Step 2: Convert to fraction form
    190,744.50/286,167.78 = 66,085.50/x
  3. Step 3: Cross multiply
    190,744.50x = 286,167.78 × 66,085.50
  4. Step 4: Simplify right side
    190,744.50x = 18,911,540,825.19
  5. Step 5: Solve for x
    x = 18,911,540,825.19/190,744.50
  6. Step 6: Final answer
    x = 99,145.93

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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.