Home / 132,521.40-198,782.10-49,404.60

Finding the Fourth Proportional to 132,521.40, 198,782.10 and 49,404.60

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Solution

The fourth proportional to 132,521.40, 198,782.10 and 49,404.60 is: 74,106.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,521.40 : 198,782.10 = 49,404.60 : x
  2. Step 2: Convert to fraction form
    132,521.40/198,782.10 = 49,404.60/x
  3. Step 3: Cross multiply
    132,521.40x = 198,782.10 × 49,404.60
  4. Step 4: Simplify right side
    132,521.40x = 9,820,750,137.66
  5. Step 5: Solve for x
    x = 9,820,750,137.66/132,521.40
  6. Step 6: Final answer
    x = 74,106.90

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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.