Home / 189,565.24-261,676.37-129,196.90

Finding the Fourth Proportional to 189,565.24, 261,676.37 and 129,196.90

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Solution

The fourth proportional to 189,565.24, 261,676.37 and 129,196.90 is: 178,343.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,565.24 : 261,676.37 = 129,196.90 : x
  2. Step 2: Convert to fraction form
    189,565.24/261,676.37 = 129,196.90/x
  3. Step 3: Cross multiply
    189,565.24x = 261,676.37 × 129,196.90
  4. Step 4: Simplify right side
    189,565.24x = 33,807,773,852.89
  5. Step 5: Solve for x
    x = 33,807,773,852.89/189,565.24
  6. Step 6: Final answer
    x = 178,343.74

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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.