Home / 124,923.20-187,530.60-71,657.60

Finding the Fourth Proportional to 124,923.20, 187,530.60 and 71,657.60

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Solution

The fourth proportional to 124,923.20, 187,530.60 and 71,657.60 is: 107,570.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,923.20 : 187,530.60 = 71,657.60 : x
  2. Step 2: Convert to fraction form
    124,923.20/187,530.60 = 71,657.60/x
  3. Step 3: Cross multiply
    124,923.20x = 187,530.60 × 71,657.60
  4. Step 4: Simplify right side
    124,923.20x = 13,437,992,722.56
  5. Step 5: Solve for x
    x = 13,437,992,722.56/124,923.20
  6. Step 6: Final answer
    x = 107,570.03

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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.