Home / 116,813.82-161,035.11-83,221.50

Finding the Fourth Proportional to 116,813.82, 161,035.11 and 83,221.50

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Solution

The fourth proportional to 116,813.82, 161,035.11 and 83,221.50 is: 114,726.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,813.82 : 161,035.11 = 83,221.50 : x
  2. Step 2: Convert to fraction form
    116,813.82/161,035.11 = 83,221.50/x
  3. Step 3: Cross multiply
    116,813.82x = 161,035.11 × 83,221.50
  4. Step 4: Simplify right side
    116,813.82x = 13,401,583,406.87
  5. Step 5: Solve for x
    x = 13,401,583,406.87/116,813.82
  6. Step 6: Final answer
    x = 114,726.01

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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.