Home / 123,372.48-170,254-66,783.84

Finding the Fourth Proportional to 123,372.48, 170,254 and 66,783.84

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Solution

The fourth proportional to 123,372.48, 170,254 and 66,783.84 is: 92,161.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,372.48 : 170,254 = 66,783.84 : x
  2. Step 2: Convert to fraction form
    123,372.48/170,254 = 66,783.84/x
  3. Step 3: Cross multiply
    123,372.48x = 170,254 × 66,783.84
  4. Step 4: Simplify right side
    123,372.48x = 11,370,215,895.36
  5. Step 5: Solve for x
    x = 11,370,215,895.36/123,372.48
  6. Step 6: Final answer
    x = 92,161.69

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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.