Home / 116,471.13-160,729.35-66,170.13

Finding the Fourth Proportional to 116,471.13, 160,729.35 and 66,170.13

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Solution

The fourth proportional to 116,471.13, 160,729.35 and 66,170.13 is: 91,314.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,471.13 : 160,729.35 = 66,170.13 : x
  2. Step 2: Convert to fraction form
    116,471.13/160,729.35 = 66,170.13/x
  3. Step 3: Cross multiply
    116,471.13x = 160,729.35 × 66,170.13
  4. Step 4: Simplify right side
    116,471.13x = 10,635,481,984.32
  5. Step 5: Solve for x
    x = 10,635,481,984.32/116,471.13
  6. Step 6: Final answer
    x = 91,314.32

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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.