Home / 103,755.60-155,533.77-66,209.67

Finding the Fourth Proportional to 103,755.60, 155,533.77 and 66,209.67

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Solution

The fourth proportional to 103,755.60, 155,533.77 and 66,209.67 is: 99,250.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,755.60 : 155,533.77 = 66,209.67 : x
  2. Step 2: Convert to fraction form
    103,755.60/155,533.77 = 66,209.67/x
  3. Step 3: Cross multiply
    103,755.60x = 155,533.77 × 66,209.67
  4. Step 4: Simplify right side
    103,755.60x = 10,297,839,585.56
  5. Step 5: Solve for x
    x = 10,297,839,585.56/103,755.60
  6. Step 6: Final answer
    x = 99,250.93

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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.