Home / 190,866.60-263,420.10-115,456.68

Finding the Fourth Proportional to 190,866.60, 263,420.10 and 115,456.68

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Solution

The fourth proportional to 190,866.60, 263,420.10 and 115,456.68 is: 159,344.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,866.60 : 263,420.10 = 115,456.68 : x
  2. Step 2: Convert to fraction form
    190,866.60/263,420.10 = 115,456.68/x
  3. Step 3: Cross multiply
    190,866.60x = 263,420.10 × 115,456.68
  4. Step 4: Simplify right side
    190,866.60x = 30,413,610,191.27
  5. Step 5: Solve for x
    x = 30,413,610,191.27/190,866.60
  6. Step 6: Final answer
    x = 159,344.85

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1.5x scale

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.