Home / 119,840.80-165,381.20-66,127.82

Finding the Fourth Proportional to 119,840.80, 165,381.20 and 66,127.82

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Solution

The fourth proportional to 119,840.80, 165,381.20 and 66,127.82 is: 91,256.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,840.80 : 165,381.20 = 66,127.82 : x
  2. Step 2: Convert to fraction form
    119,840.80/165,381.20 = 66,127.82/x
  3. Step 3: Cross multiply
    119,840.80x = 165,381.20 × 66,127.82
  4. Step 4: Simplify right side
    119,840.80x = 10,936,298,224.98
  5. Step 5: Solve for x
    x = 10,936,298,224.98/119,840.80
  6. Step 6: Final answer
    x = 91,256.89

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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.