Home / 120,208.02-180,400.62-57,028.34

Finding the Fourth Proportional to 120,208.02, 180,400.62 and 57,028.34

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Solution

The fourth proportional to 120,208.02, 180,400.62 and 57,028.34 is: 85,584.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,208.02 : 180,400.62 = 57,028.34 : x
  2. Step 2: Convert to fraction form
    120,208.02/180,400.62 = 57,028.34/x
  3. Step 3: Cross multiply
    120,208.02x = 180,400.62 × 57,028.34
  4. Step 4: Simplify right side
    120,208.02x = 10,287,946,991.57
  5. Step 5: Solve for x
    x = 10,287,946,991.57/120,208.02
  6. Step 6: Final answer
    x = 85,584.53

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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.