Home / 104,028.40-156,042.60-79,145.20

Finding the Fourth Proportional to 104,028.40, 156,042.60 and 79,145.20

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Solution

The fourth proportional to 104,028.40, 156,042.60 and 79,145.20 is: 118,717.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,028.40 : 156,042.60 = 79,145.20 : x
  2. Step 2: Convert to fraction form
    104,028.40/156,042.60 = 79,145.20/x
  3. Step 3: Cross multiply
    104,028.40x = 156,042.60 × 79,145.20
  4. Step 4: Simplify right side
    104,028.40x = 12,350,022,785.52
  5. Step 5: Solve for x
    x = 12,350,022,785.52/104,028.40
  6. Step 6: Final answer
    x = 118,717.80

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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.