Home / 116,709.84-161,079.20-67,644.16

Finding the Fourth Proportional to 116,709.84, 161,079.20 and 67,644.16

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Solution

The fourth proportional to 116,709.84, 161,079.20 and 67,644.16 is: 93,360.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,709.84 : 161,079.20 = 67,644.16 : x
  2. Step 2: Convert to fraction form
    116,709.84/161,079.20 = 67,644.16/x
  3. Step 3: Cross multiply
    116,709.84x = 161,079.20 × 67,644.16
  4. Step 4: Simplify right side
    116,709.84x = 10,896,067,177.47
  5. Step 5: Solve for x
    x = 10,896,067,177.47/116,709.84
  6. Step 6: Final answer
    x = 93,360.31

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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.