Home / 131,029.60-196,544.40-89,039.20

Finding the Fourth Proportional to 131,029.60, 196,544.40 and 89,039.20

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Solution

The fourth proportional to 131,029.60, 196,544.40 and 89,039.20 is: 133,558.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,029.60 : 196,544.40 = 89,039.20 : x
  2. Step 2: Convert to fraction form
    131,029.60/196,544.40 = 89,039.20/x
  3. Step 3: Cross multiply
    131,029.60x = 196,544.40 × 89,039.20
  4. Step 4: Simplify right side
    131,029.60x = 17,500,156,140.48
  5. Step 5: Solve for x
    x = 17,500,156,140.48/131,029.60
  6. Step 6: Final answer
    x = 133,558.80

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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.