Home / 168,030.71-231,881.09-91,549.56

Finding the Fourth Proportional to 168,030.71, 231,881.09 and 91,549.56

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Solution

The fourth proportional to 168,030.71, 231,881.09 and 91,549.56 is: 126,337.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,030.71 : 231,881.09 = 91,549.56 : x
  2. Step 2: Convert to fraction form
    168,030.71/231,881.09 = 91,549.56/x
  3. Step 3: Cross multiply
    168,030.71x = 231,881.09 × 91,549.56
  4. Step 4: Simplify right side
    168,030.71x = 21,228,611,304.07
  5. Step 5: Solve for x
    x = 21,228,611,304.07/168,030.71
  6. Step 6: Final answer
    x = 126,337.69

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1.5x scale

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.