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Finding the Fourth Proportional to 100,581, 150,935.07 and 56,236.86

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Solution

The fourth proportional to 100,581, 150,935.07 and 56,236.86 is: 84,390.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,581 : 150,935.07 = 56,236.86 : x
  2. Step 2: Convert to fraction form
    100,581/150,935.07 = 56,236.86/x
  3. Step 3: Cross multiply
    100,581x = 150,935.07 × 56,236.86
  4. Step 4: Simplify right side
    100,581x = 8,488,114,400.68
  5. Step 5: Solve for x
    x = 8,488,114,400.68/100,581
  6. Step 6: Final answer
    x = 84,390.83

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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.