Home / 77,770.20-116,525.70-73,104.60

Finding the Fourth Proportional to 77,770.20, 116,525.70 and 73,104.60

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Solution

The fourth proportional to 77,770.20, 116,525.70 and 73,104.60 is: 109,535.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,770.20 : 116,525.70 = 73,104.60 : x
  2. Step 2: Convert to fraction form
    77,770.20/116,525.70 = 73,104.60/x
  3. Step 3: Cross multiply
    77,770.20x = 116,525.70 × 73,104.60
  4. Step 4: Simplify right side
    77,770.20x = 8,518,564,688.22
  5. Step 5: Solve for x
    x = 8,518,564,688.22/77,770.20
  6. Step 6: Final answer
    x = 109,535.07

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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.