Home / 129,495.40-194,652.70-122,122.60

Finding the Fourth Proportional to 129,495.40, 194,652.70 and 122,122.60

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Solution

The fourth proportional to 129,495.40, 194,652.70 and 122,122.60 is: 183,570.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,495.40 : 194,652.70 = 122,122.60 : x
  2. Step 2: Convert to fraction form
    129,495.40/194,652.70 = 122,122.60/x
  3. Step 3: Cross multiply
    129,495.40x = 194,652.70 × 122,122.60
  4. Step 4: Simplify right side
    129,495.40x = 23,771,493,821.02
  5. Step 5: Solve for x
    x = 23,771,493,821.02/129,495.40
  6. Step 6: Final answer
    x = 183,570.18

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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.