Home / 149,021.40-223,532.10-89,826.60

Finding the Fourth Proportional to 149,021.40, 223,532.10 and 89,826.60

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Solution

The fourth proportional to 149,021.40, 223,532.10 and 89,826.60 is: 134,739.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,021.40 : 223,532.10 = 89,826.60 : x
  2. Step 2: Convert to fraction form
    149,021.40/223,532.10 = 89,826.60/x
  3. Step 3: Cross multiply
    149,021.40x = 223,532.10 × 89,826.60
  4. Step 4: Simplify right side
    149,021.40x = 20,079,128,533.86
  5. Step 5: Solve for x
    x = 20,079,128,533.86/149,021.40
  6. Step 6: Final answer
    x = 134,739.90

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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.