Home / 131,513.60-197,351.40-56,669.60

Finding the Fourth Proportional to 131,513.60, 197,351.40 and 56,669.60

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Solution

The fourth proportional to 131,513.60, 197,351.40 and 56,669.60 is: 85,039.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,513.60 : 197,351.40 = 56,669.60 : x
  2. Step 2: Convert to fraction form
    131,513.60/197,351.40 = 56,669.60/x
  3. Step 3: Cross multiply
    131,513.60x = 197,351.40 × 56,669.60
  4. Step 4: Simplify right side
    131,513.60x = 11,183,824,897.44
  5. Step 5: Solve for x
    x = 11,183,824,897.44/131,513.60
  6. Step 6: Final answer
    x = 85,039.30

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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.