Home / 148,790.37-205,280.74-84,250.78

Finding the Fourth Proportional to 148,790.37, 205,280.74 and 84,250.78

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Solution

The fourth proportional to 148,790.37, 205,280.74 and 84,250.78 is: 116,237.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,790.37 : 205,280.74 = 84,250.78 : x
  2. Step 2: Convert to fraction form
    148,790.37/205,280.74 = 84,250.78/x
  3. Step 3: Cross multiply
    148,790.37x = 205,280.74 × 84,250.78
  4. Step 4: Simplify right side
    148,790.37x = 17,295,062,463.98
  5. Step 5: Solve for x
    x = 17,295,062,463.98/148,790.37
  6. Step 6: Final answer
    x = 116,237.78

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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.