Home / 142,710.12-196,940.70-92,496.60

Finding the Fourth Proportional to 142,710.12, 196,940.70 and 92,496.60

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Solution

The fourth proportional to 142,710.12, 196,940.70 and 92,496.60 is: 127,645.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,710.12 : 196,940.70 = 92,496.60 : x
  2. Step 2: Convert to fraction form
    142,710.12/196,940.70 = 92,496.60/x
  3. Step 3: Cross multiply
    142,710.12x = 196,940.70 × 92,496.60
  4. Step 4: Simplify right side
    142,710.12x = 18,216,345,151.62
  5. Step 5: Solve for x
    x = 18,216,345,151.62/142,710.12
  6. Step 6: Final answer
    x = 127,645.78

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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.