Home / 124,675.20-186,807.60-71,992.80

Finding the Fourth Proportional to 124,675.20, 186,807.60 and 71,992.80

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Solution

The fourth proportional to 124,675.20, 186,807.60 and 71,992.80 is: 107,870.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,675.20 : 186,807.60 = 71,992.80 : x
  2. Step 2: Convert to fraction form
    124,675.20/186,807.60 = 71,992.80/x
  3. Step 3: Cross multiply
    124,675.20x = 186,807.60 × 71,992.80
  4. Step 4: Simplify right side
    124,675.20x = 13,448,802,185.28
  5. Step 5: Solve for x
    x = 13,448,802,185.28/124,675.20
  6. Step 6: Final answer
    x = 107,870.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.