Home / 190,987.20-286,610.40-124,264.80

Finding the Fourth Proportional to 190,987.20, 286,610.40 and 124,264.80

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Solution

The fourth proportional to 190,987.20, 286,610.40 and 124,264.80 is: 186,481.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,987.20 : 286,610.40 = 124,264.80 : x
  2. Step 2: Convert to fraction form
    190,987.20/286,610.40 = 124,264.80/x
  3. Step 3: Cross multiply
    190,987.20x = 286,610.40 × 124,264.80
  4. Step 4: Simplify right side
    190,987.20x = 35,615,584,033.92
  5. Step 5: Solve for x
    x = 35,615,584,033.92/190,987.20
  6. Step 6: Final answer
    x = 186,481.52

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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.