Home / 190,999.20-286,628.40-124,276.80

Finding the Fourth Proportional to 190,999.20, 286,628.40 and 124,276.80

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Solution

The fourth proportional to 190,999.20, 286,628.40 and 124,276.80 is: 186,499.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,999.20 : 286,628.40 = 124,276.80 : x
  2. Step 2: Convert to fraction form
    190,999.20/286,628.40 = 124,276.80/x
  3. Step 3: Cross multiply
    190,999.20x = 286,628.40 × 124,276.80
  4. Step 4: Simplify right side
    190,999.20x = 35,621,260,341.12
  5. Step 5: Solve for x
    x = 35,621,260,341.12/190,999.20
  6. Step 6: Final answer
    x = 186,499.53

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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.