Home / 132,986.52-183,528.42-76,401.54

Finding the Fourth Proportional to 132,986.52, 183,528.42 and 76,401.54

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Solution

The fourth proportional to 132,986.52, 183,528.42 and 76,401.54 is: 105,438.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,986.52 : 183,528.42 = 76,401.54 : x
  2. Step 2: Convert to fraction form
    132,986.52/183,528.42 = 76,401.54/x
  3. Step 3: Cross multiply
    132,986.52x = 183,528.42 × 76,401.54
  4. Step 4: Simplify right side
    132,986.52x = 14,021,853,921.77
  5. Step 5: Solve for x
    x = 14,021,853,921.77/132,986.52
  6. Step 6: Final answer
    x = 105,438.16

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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.