Home / 148,386.45-222,801.99-128,457.39

Finding the Fourth Proportional to 148,386.45, 222,801.99 and 128,457.39

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Solution

The fourth proportional to 148,386.45, 222,801.99 and 128,457.39 is: 192,878.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,386.45 : 222,801.99 = 128,457.39 : x
  2. Step 2: Convert to fraction form
    148,386.45/222,801.99 = 128,457.39/x
  3. Step 3: Cross multiply
    148,386.45x = 222,801.99 × 128,457.39
  4. Step 4: Simplify right side
    148,386.45x = 28,620,562,122.21
  5. Step 5: Solve for x
    x = 28,620,562,122.21/148,386.45
  6. Step 6: Final answer
    x = 192,878.54

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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.