Home / 119,380.34-164,749.20-65,669.51

Finding the Fourth Proportional to 119,380.34, 164,749.20 and 65,669.51

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Solution

The fourth proportional to 119,380.34, 164,749.20 and 65,669.51 is: 90,626.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,380.34 : 164,749.20 = 65,669.51 : x
  2. Step 2: Convert to fraction form
    119,380.34/164,749.20 = 65,669.51/x
  3. Step 3: Cross multiply
    119,380.34x = 164,749.20 × 65,669.51
  4. Step 4: Simplify right side
    119,380.34x = 10,818,999,236.89
  5. Step 5: Solve for x
    x = 10,818,999,236.89/119,380.34
  6. Step 6: Final answer
    x = 90,626.31

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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.