Home / 99,633.06-149,493.60-52,236.81

Finding the Fourth Proportional to 99,633.06, 149,493.60 and 52,236.81

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Solution

The fourth proportional to 99,633.06, 149,493.60 and 52,236.81 is: 78,378.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,633.06 : 149,493.60 = 52,236.81 : x
  2. Step 2: Convert to fraction form
    99,633.06/149,493.60 = 52,236.81/x
  3. Step 3: Cross multiply
    99,633.06x = 149,493.60 × 52,236.81
  4. Step 4: Simplify right side
    99,633.06x = 7,809,068,779.42
  5. Step 5: Solve for x
    x = 7,809,068,779.42/99,633.06
  6. Step 6: Final answer
    x = 78,378.29

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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.