Home / 148,979.78-205,390.87-101,150.10

Finding the Fourth Proportional to 148,979.78, 205,390.87 and 101,150.10

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Solution

The fourth proportional to 148,979.78, 205,390.87 and 101,150.10 is: 139,450.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,979.78 : 205,390.87 = 101,150.10 : x
  2. Step 2: Convert to fraction form
    148,979.78/205,390.87 = 101,150.10/x
  3. Step 3: Cross multiply
    148,979.78x = 205,390.87 × 101,150.10
  4. Step 4: Simplify right side
    148,979.78x = 20,775,307,039.59
  5. Step 5: Solve for x
    x = 20,775,307,039.59/148,979.78
  6. Step 6: Final answer
    x = 139,450.51

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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.