Home / 117,961.20-176,941.80-89,967.60

Finding the Fourth Proportional to 117,961.20, 176,941.80 and 89,967.60

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Solution

The fourth proportional to 117,961.20, 176,941.80 and 89,967.60 is: 134,951.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,961.20 : 176,941.80 = 89,967.60 : x
  2. Step 2: Convert to fraction form
    117,961.20/176,941.80 = 89,967.60/x
  3. Step 3: Cross multiply
    117,961.20x = 176,941.80 × 89,967.60
  4. Step 4: Simplify right side
    117,961.20x = 15,919,029,085.68
  5. Step 5: Solve for x
    x = 15,919,029,085.68/117,961.20
  6. Step 6: Final answer
    x = 134,951.40

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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.