Home / 148,113.22-204,395.38-80,130

Finding the Fourth Proportional to 148,113.22, 204,395.38 and 80,130

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Solution

The fourth proportional to 148,113.22, 204,395.38 and 80,130 is: 110,578.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,113.22 : 204,395.38 = 80,130 : x
  2. Step 2: Convert to fraction form
    148,113.22/204,395.38 = 80,130/x
  3. Step 3: Cross multiply
    148,113.22x = 204,395.38 × 80,130
  4. Step 4: Simplify right side
    148,113.22x = 16,378,201,799.40
  5. Step 5: Solve for x
    x = 16,378,201,799.40/148,113.22
  6. Step 6: Final answer
    x = 110,578.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.