Home / 189,344.56-261,288.28-117,708.16

Finding the Fourth Proportional to 189,344.56, 261,288.28 and 117,708.16

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Solution

The fourth proportional to 189,344.56, 261,288.28 and 117,708.16 is: 162,432.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,344.56 : 261,288.28 = 117,708.16 : x
  2. Step 2: Convert to fraction form
    189,344.56/261,288.28 = 117,708.16/x
  3. Step 3: Cross multiply
    189,344.56x = 261,288.28 × 117,708.16
  4. Step 4: Simplify right side
    189,344.56x = 30,755,762,668.36
  5. Step 5: Solve for x
    x = 30,755,762,668.36/189,344.56
  6. Step 6: Final answer
    x = 162,432.78

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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.