Home / 131,540.40-197,148.60-89,420.40

Finding the Fourth Proportional to 131,540.40, 197,148.60 and 89,420.40

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Solution

The fourth proportional to 131,540.40, 197,148.60 and 89,420.40 is: 134,020.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,540.40 : 197,148.60 = 89,420.40 : x
  2. Step 2: Convert to fraction form
    131,540.40/197,148.60 = 89,420.40/x
  3. Step 3: Cross multiply
    131,540.40x = 197,148.60 × 89,420.40
  4. Step 4: Simplify right side
    131,540.40x = 17,629,106,671.44
  5. Step 5: Solve for x
    x = 17,629,106,671.44/131,540.40
  6. Step 6: Final answer
    x = 134,020.47

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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.