Home / 121,694.94-182,606.67-86,384.34

Finding the Fourth Proportional to 121,694.94, 182,606.67 and 86,384.34

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Solution

The fourth proportional to 121,694.94, 182,606.67 and 86,384.34 is: 129,622.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,694.94 : 182,606.67 = 86,384.34 : x
  2. Step 2: Convert to fraction form
    121,694.94/182,606.67 = 86,384.34/x
  3. Step 3: Cross multiply
    121,694.94x = 182,606.67 × 86,384.34
  4. Step 4: Simplify right side
    121,694.94x = 15,774,356,667.55
  5. Step 5: Solve for x
    x = 15,774,356,667.55/121,694.94
  6. Step 6: Final answer
    x = 129,622.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.