Home / 104,226.50-143,779.76-65,921.54

Finding the Fourth Proportional to 104,226.50, 143,779.76 and 65,921.54

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Solution

The fourth proportional to 104,226.50, 143,779.76 and 65,921.54 is: 90,938.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,226.50 : 143,779.76 = 65,921.54 : x
  2. Step 2: Convert to fraction form
    104,226.50/143,779.76 = 65,921.54/x
  3. Step 3: Cross multiply
    104,226.50x = 143,779.76 × 65,921.54
  4. Step 4: Simplify right side
    104,226.50x = 9,478,183,229.87
  5. Step 5: Solve for x
    x = 9,478,183,229.87/104,226.50
  6. Step 6: Final answer
    x = 90,938.32

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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.