Home / 116,772.07-161,145.95-65,785.41

Finding the Fourth Proportional to 116,772.07, 161,145.95 and 65,785.41

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Solution

The fourth proportional to 116,772.07, 161,145.95 and 65,785.41 is: 90,784.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,772.07 : 161,145.95 = 65,785.41 : x
  2. Step 2: Convert to fraction form
    116,772.07/161,145.95 = 65,785.41/x
  3. Step 3: Cross multiply
    116,772.07x = 161,145.95 × 65,785.41
  4. Step 4: Simplify right side
    116,772.07x = 10,601,052,473.30
  5. Step 5: Solve for x
    x = 10,601,052,473.30/116,772.07
  6. Step 6: Final answer
    x = 90,784.14

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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.