Home / 148,741.09-205,267.29-85,099.39

Finding the Fourth Proportional to 148,741.09, 205,267.29 and 85,099.39

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Solution

The fourth proportional to 148,741.09, 205,267.29 and 85,099.39 is: 117,439.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,741.09 : 205,267.29 = 85,099.39 : x
  2. Step 2: Convert to fraction form
    148,741.09/205,267.29 = 85,099.39/x
  3. Step 3: Cross multiply
    148,741.09x = 205,267.29 × 85,099.39
  4. Step 4: Simplify right side
    148,741.09x = 17,468,121,165.95
  5. Step 5: Solve for x
    x = 17,468,121,165.95/148,741.09
  6. Step 6: Final answer
    x = 117,439.78

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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.