Home / 102,072.60-140,811.06-66,273.84

Finding the Fourth Proportional to 102,072.60, 140,811.06 and 66,273.84

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Solution

The fourth proportional to 102,072.60, 140,811.06 and 66,273.84 is: 91,426.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,072.60 : 140,811.06 = 66,273.84 : x
  2. Step 2: Convert to fraction form
    102,072.60/140,811.06 = 66,273.84/x
  3. Step 3: Cross multiply
    102,072.60x = 140,811.06 × 66,273.84
  4. Step 4: Simplify right side
    102,072.60x = 9,332,089,660.67
  5. Step 5: Solve for x
    x = 9,332,089,660.67/102,072.60
  6. Step 6: Final answer
    x = 91,426.00

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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.