Home / 100,863.40-151,295.10-30,742.60

Finding the Fourth Proportional to 100,863.40, 151,295.10 and 30,742.60

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Solution

The fourth proportional to 100,863.40, 151,295.10 and 30,742.60 is: 46,113.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,863.40 : 151,295.10 = 30,742.60 : x
  2. Step 2: Convert to fraction form
    100,863.40/151,295.10 = 30,742.60/x
  3. Step 3: Cross multiply
    100,863.40x = 151,295.10 × 30,742.60
  4. Step 4: Simplify right side
    100,863.40x = 4,651,204,741.26
  5. Step 5: Solve for x
    x = 4,651,204,741.26/100,863.40
  6. Step 6: Final answer
    x = 46,113.90

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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.