Home / 116,764.89-161,145.30-65,787.59

Finding the Fourth Proportional to 116,764.89, 161,145.30 and 65,787.59

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Solution

The fourth proportional to 116,764.89, 161,145.30 and 65,787.59 is: 90,792.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,764.89 : 161,145.30 = 65,787.59 : x
  2. Step 2: Convert to fraction form
    116,764.89/161,145.30 = 65,787.59/x
  3. Step 3: Cross multiply
    116,764.89x = 161,145.30 × 65,787.59
  4. Step 4: Simplify right side
    116,764.89x = 10,601,361,206.34
  5. Step 5: Solve for x
    x = 10,601,361,206.34/116,764.89
  6. Step 6: Final answer
    x = 90,792.37

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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.