Home / 140,986.90-194,561.96-76,456.11

Finding the Fourth Proportional to 140,986.90, 194,561.96 and 76,456.11

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Solution

The fourth proportional to 140,986.90, 194,561.96 and 76,456.11 is: 105,509.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,986.90 : 194,561.96 = 76,456.11 : x
  2. Step 2: Convert to fraction form
    140,986.90/194,561.96 = 76,456.11/x
  3. Step 3: Cross multiply
    140,986.90x = 194,561.96 × 76,456.11
  4. Step 4: Simplify right side
    140,986.90x = 14,875,450,615.58
  5. Step 5: Solve for x
    x = 14,875,450,615.58/140,986.90
  6. Step 6: Final answer
    x = 105,509.45

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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.