Home / 132,390.89-198,474.40-57,454.35

Finding the Fourth Proportional to 132,390.89, 198,474.40 and 57,454.35

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Solution

The fourth proportional to 132,390.89, 198,474.40 and 57,454.35 is: 86,132.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,390.89 : 198,474.40 = 57,454.35 : x
  2. Step 2: Convert to fraction form
    132,390.89/198,474.40 = 57,454.35/x
  3. Step 3: Cross multiply
    132,390.89x = 198,474.40 × 57,454.35
  4. Step 4: Simplify right side
    132,390.89x = 11,403,216,971.18
  5. Step 5: Solve for x
    x = 11,403,216,971.18/132,390.89
  6. Step 6: Final answer
    x = 86,132.94

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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.