Home / 190,930.40-286,395.60-164,103.20

Finding the Fourth Proportional to 190,930.40, 286,395.60 and 164,103.20

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Solution

The fourth proportional to 190,930.40, 286,395.60 and 164,103.20 is: 246,154.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,930.40 : 286,395.60 = 164,103.20 : x
  2. Step 2: Convert to fraction form
    190,930.40/286,395.60 = 164,103.20/x
  3. Step 3: Cross multiply
    190,930.40x = 286,395.60 × 164,103.20
  4. Step 4: Simplify right side
    190,930.40x = 46,998,434,425.92
  5. Step 5: Solve for x
    x = 46,998,434,425.92/190,930.40
  6. Step 6: Final answer
    x = 246,154.80

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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.