Home / 190,839.60-286,259.40-66,180.60

Finding the Fourth Proportional to 190,839.60, 286,259.40 and 66,180.60

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Solution

The fourth proportional to 190,839.60, 286,259.40 and 66,180.60 is: 99,270.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,839.60 : 286,259.40 = 66,180.60 : x
  2. Step 2: Convert to fraction form
    190,839.60/286,259.40 = 66,180.60/x
  3. Step 3: Cross multiply
    190,839.60x = 286,259.40 × 66,180.60
  4. Step 4: Simplify right side
    190,839.60x = 18,944,818,847.64
  5. Step 5: Solve for x
    x = 18,944,818,847.64/190,839.60
  6. Step 6: Final answer
    x = 99,270.90

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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.