Home / 150,861.26-208,225.96-87,189.86

Finding the Fourth Proportional to 150,861.26, 208,225.96 and 87,189.86

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Solution

The fourth proportional to 150,861.26, 208,225.96 and 87,189.86 is: 120,343.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,861.26 : 208,225.96 = 87,189.86 : x
  2. Step 2: Convert to fraction form
    150,861.26/208,225.96 = 87,189.86/x
  3. Step 3: Cross multiply
    150,861.26x = 208,225.96 × 87,189.86
  4. Step 4: Simplify right side
    150,861.26x = 18,155,192,300.77
  5. Step 5: Solve for x
    x = 18,155,192,300.77/150,861.26
  6. Step 6: Final answer
    x = 120,343.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.