Home / 132,688.72-198,486.28-121,010.12

Finding the Fourth Proportional to 132,688.72, 198,486.28 and 121,010.12

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Solution

The fourth proportional to 132,688.72, 198,486.28 and 121,010.12 is: 181,016.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,688.72 : 198,486.28 = 121,010.12 : x
  2. Step 2: Convert to fraction form
    132,688.72/198,486.28 = 121,010.12/x
  3. Step 3: Cross multiply
    132,688.72x = 198,486.28 × 121,010.12
  4. Step 4: Simplify right side
    132,688.72x = 24,018,848,561.15
  5. Step 5: Solve for x
    x = 24,018,848,561.15/132,688.72
  6. Step 6: Final answer
    x = 181,016.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.