Home / 148,208.52-204,527.76-81,140.52

Finding the Fourth Proportional to 148,208.52, 204,527.76 and 81,140.52

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Solution

The fourth proportional to 148,208.52, 204,527.76 and 81,140.52 is: 111,973.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,208.52 : 204,527.76 = 81,140.52 : x
  2. Step 2: Convert to fraction form
    148,208.52/204,527.76 = 81,140.52/x
  3. Step 3: Cross multiply
    148,208.52x = 204,527.76 × 81,140.52
  4. Step 4: Simplify right side
    148,208.52x = 16,595,488,800.84
  5. Step 5: Solve for x
    x = 16,595,488,800.84/148,208.52
  6. Step 6: Final answer
    x = 111,973.92

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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.