Home / 189,389.64-261,452.32-117,792.76

Finding the Fourth Proportional to 189,389.64, 261,452.32 and 117,792.76

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Solution

The fourth proportional to 189,389.64, 261,452.32 and 117,792.76 is: 162,612.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,389.64 : 261,452.32 = 117,792.76 : x
  2. Step 2: Convert to fraction form
    189,389.64/261,452.32 = 117,792.76/x
  3. Step 3: Cross multiply
    189,389.64x = 261,452.32 × 117,792.76
  4. Step 4: Simplify right side
    189,389.64x = 30,797,190,381.20
  5. Step 5: Solve for x
    x = 30,797,190,381.20/189,389.64
  6. Step 6: Final answer
    x = 162,612.86

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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.