Home / 148,212.52-204,533.28-81,144.52

Finding the Fourth Proportional to 148,212.52, 204,533.28 and 81,144.52

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Solution

The fourth proportional to 148,212.52, 204,533.28 and 81,144.52 is: 111,979.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,212.52 : 204,533.28 = 81,144.52 : x
  2. Step 2: Convert to fraction form
    148,212.52/204,533.28 = 81,144.52/x
  3. Step 3: Cross multiply
    148,212.52x = 204,533.28 × 81,144.52
  4. Step 4: Simplify right side
    148,212.52x = 16,596,754,829.63
  5. Step 5: Solve for x
    x = 16,596,754,829.63/148,212.52
  6. Step 6: Final answer
    x = 111,979.44

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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.