Home / 165,078.40-247,617.60-155,236.90

Finding the Fourth Proportional to 165,078.40, 247,617.60 and 155,236.90

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Solution

The fourth proportional to 165,078.40, 247,617.60 and 155,236.90 is: 232,855.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,078.40 : 247,617.60 = 155,236.90 : x
  2. Step 2: Convert to fraction form
    165,078.40/247,617.60 = 155,236.90/x
  3. Step 3: Cross multiply
    165,078.40x = 247,617.60 × 155,236.90
  4. Step 4: Simplify right side
    165,078.40x = 38,439,388,609.44
  5. Step 5: Solve for x
    x = 38,439,388,609.44/165,078.40
  6. Step 6: Final answer
    x = 232,855.35

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1.5x scale

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.