Home / 102,049.56-140,831.28-61,770.60

Finding the Fourth Proportional to 102,049.56, 140,831.28 and 61,770.60

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Solution

The fourth proportional to 102,049.56, 140,831.28 and 61,770.60 is: 85,245.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,049.56 : 140,831.28 = 61,770.60 : x
  2. Step 2: Convert to fraction form
    102,049.56/140,831.28 = 61,770.60/x
  3. Step 3: Cross multiply
    102,049.56x = 140,831.28 × 61,770.60
  4. Step 4: Simplify right side
    102,049.56x = 8,699,232,664.37
  5. Step 5: Solve for x
    x = 8,699,232,664.37/102,049.56
  6. Step 6: Final answer
    x = 85,245.18

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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.