Home / 100,143.60-150,300.45-41,021.70

Finding the Fourth Proportional to 100,143.60, 150,300.45 and 41,021.70

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Solution

The fourth proportional to 100,143.60, 150,300.45 and 41,021.70 is: 61,567.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,143.60 : 150,300.45 = 41,021.70 : x
  2. Step 2: Convert to fraction form
    100,143.60/150,300.45 = 41,021.70/x
  3. Step 3: Cross multiply
    100,143.60x = 150,300.45 × 41,021.70
  4. Step 4: Simplify right side
    100,143.60x = 6,165,579,969.77
  5. Step 5: Solve for x
    x = 6,165,579,969.77/100,143.60
  6. Step 6: Final answer
    x = 61,567.39

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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.