Home / 189,380.64-261,439.90-117,783.74

Finding the Fourth Proportional to 189,380.64, 261,439.90 and 117,783.74

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Solution

The fourth proportional to 189,380.64, 261,439.90 and 117,783.74 is: 162,600.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,380.64 : 261,439.90 = 117,783.74 : x
  2. Step 2: Convert to fraction form
    189,380.64/261,439.90 = 117,783.74/x
  3. Step 3: Cross multiply
    189,380.64x = 261,439.90 × 117,783.74
  4. Step 4: Simplify right side
    189,380.64x = 30,793,369,207.23
  5. Step 5: Solve for x
    x = 30,793,369,207.23/189,380.64
  6. Step 6: Final answer
    x = 162,600.41

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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.