Home / 149,034.67-205,671.35-81,056.03

Finding the Fourth Proportional to 149,034.67, 205,671.35 and 81,056.03

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Solution

The fourth proportional to 149,034.67, 205,671.35 and 81,056.03 is: 111,859.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,034.67 : 205,671.35 = 81,056.03 : x
  2. Step 2: Convert to fraction form
    149,034.67/205,671.35 = 81,056.03/x
  3. Step 3: Cross multiply
    149,034.67x = 205,671.35 × 81,056.03
  4. Step 4: Simplify right side
    149,034.67x = 16,670,902,290.02
  5. Step 5: Solve for x
    x = 16,670,902,290.02/149,034.67
  6. Step 6: Final answer
    x = 111,859.22

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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.