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Finding the Fourth Proportional to 100,134.70, 150,201.67 and 40,970.35

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Solution

The fourth proportional to 100,134.70, 150,201.67 and 40,970.35 is: 61,455.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,134.70 : 150,201.67 = 40,970.35 : x
  2. Step 2: Convert to fraction form
    100,134.70/150,201.67 = 40,970.35/x
  3. Step 3: Cross multiply
    100,134.70x = 150,201.67 × 40,970.35
  4. Step 4: Simplify right side
    100,134.70x = 6,153,814,614.96
  5. Step 5: Solve for x
    x = 6,153,814,614.96/100,134.70
  6. Step 6: Final answer
    x = 61,455.37

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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.