Home / 148,391.39-204,811.07-136,435.79

Finding the Fourth Proportional to 148,391.39, 204,811.07 and 136,435.79

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Solution

The fourth proportional to 148,391.39, 204,811.07 and 136,435.79 is: 188,309.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,391.39 : 204,811.07 = 136,435.79 : x
  2. Step 2: Convert to fraction form
    148,391.39/204,811.07 = 136,435.79/x
  3. Step 3: Cross multiply
    148,391.39x = 204,811.07 × 136,435.79
  4. Step 4: Simplify right side
    148,391.39x = 27,943,559,966.04
  5. Step 5: Solve for x
    x = 27,943,559,966.04/148,391.39
  6. Step 6: Final answer
    x = 188,309.84

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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.