Home / 131,329.60-196,994.40-89,339.20

Finding the Fourth Proportional to 131,329.60, 196,994.40 and 89,339.20

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Solution

The fourth proportional to 131,329.60, 196,994.40 and 89,339.20 is: 134,008.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,329.60 : 196,994.40 = 89,339.20 : x
  2. Step 2: Convert to fraction form
    131,329.60/196,994.40 = 89,339.20/x
  3. Step 3: Cross multiply
    131,329.60x = 196,994.40 × 89,339.20
  4. Step 4: Simplify right side
    131,329.60x = 17,599,322,100.48
  5. Step 5: Solve for x
    x = 17,599,322,100.48/131,329.60
  6. Step 6: Final answer
    x = 134,008.80

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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.