Home / 145,845.20-218,792.10-57,101.60

Finding the Fourth Proportional to 145,845.20, 218,792.10 and 57,101.60

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Solution

The fourth proportional to 145,845.20, 218,792.10 and 57,101.60 is: 85,661.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,845.20 : 218,792.10 = 57,101.60 : x
  2. Step 2: Convert to fraction form
    145,845.20/218,792.10 = 57,101.60/x
  3. Step 3: Cross multiply
    145,845.20x = 218,792.10 × 57,101.60
  4. Step 4: Simplify right side
    145,845.20x = 12,493,378,977.36
  5. Step 5: Solve for x
    x = 12,493,378,977.36/145,845.20
  6. Step 6: Final answer
    x = 85,661.91

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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.