Home / 81,677.64-122,527.43-80,212.35

Finding the Fourth Proportional to 81,677.64, 122,527.43 and 80,212.35

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Solution

The fourth proportional to 81,677.64, 122,527.43 and 80,212.35 is: 120,329.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,677.64 : 122,527.43 = 80,212.35 : x
  2. Step 2: Convert to fraction form
    81,677.64/122,527.43 = 80,212.35/x
  3. Step 3: Cross multiply
    81,677.64x = 122,527.43 × 80,212.35
  4. Step 4: Simplify right side
    81,677.64x = 9,828,213,099.76
  5. Step 5: Solve for x
    x = 9,828,213,099.76/81,677.64
  6. Step 6: Final answer
    x = 120,329.30

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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.