Home / 132,386.40-198,628.20-53,508.60

Finding the Fourth Proportional to 132,386.40, 198,628.20 and 53,508.60

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Solution

The fourth proportional to 132,386.40, 198,628.20 and 53,508.60 is: 80,282.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,386.40 : 198,628.20 = 53,508.60 : x
  2. Step 2: Convert to fraction form
    132,386.40/198,628.20 = 53,508.60/x
  3. Step 3: Cross multiply
    132,386.40x = 198,628.20 × 53,508.60
  4. Step 4: Simplify right side
    132,386.40x = 10,628,316,902.52
  5. Step 5: Solve for x
    x = 10,628,316,902.52/132,386.40
  6. Step 6: Final answer
    x = 80,282.54

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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.