Home / 104,923.78-156,272.72-104,415.28

Finding the Fourth Proportional to 104,923.78, 156,272.72 and 104,415.28

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Solution

The fourth proportional to 104,923.78, 156,272.72 and 104,415.28 is: 155,515.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,923.78 : 156,272.72 = 104,415.28 : x
  2. Step 2: Convert to fraction form
    104,923.78/156,272.72 = 104,415.28/x
  3. Step 3: Cross multiply
    104,923.78x = 156,272.72 × 104,415.28
  4. Step 4: Simplify right side
    104,923.78x = 16,317,259,815.16
  5. Step 5: Solve for x
    x = 16,317,259,815.16/104,923.78
  6. Step 6: Final answer
    x = 155,515.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.