Home / 103,222.56-154,755.84-53,280.96

Finding the Fourth Proportional to 103,222.56, 154,755.84 and 53,280.96

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Solution

The fourth proportional to 103,222.56, 154,755.84 and 53,280.96 is: 79,881.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,222.56 : 154,755.84 = 53,280.96 : x
  2. Step 2: Convert to fraction form
    103,222.56/154,755.84 = 53,280.96/x
  3. Step 3: Cross multiply
    103,222.56x = 154,755.84 × 53,280.96
  4. Step 4: Simplify right side
    103,222.56x = 8,245,539,720.81
  5. Step 5: Solve for x
    x = 8,245,539,720.81/103,222.56
  6. Step 6: Final answer
    x = 79,881.18

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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.