Home / 129,855.60-194,783.40-122,079.60

Finding the Fourth Proportional to 129,855.60, 194,783.40 and 122,079.60

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Solution

The fourth proportional to 129,855.60, 194,783.40 and 122,079.60 is: 183,119.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,855.60 : 194,783.40 = 122,079.60 : x
  2. Step 2: Convert to fraction form
    129,855.60/194,783.40 = 122,079.60/x
  3. Step 3: Cross multiply
    129,855.60x = 194,783.40 × 122,079.60
  4. Step 4: Simplify right side
    129,855.60x = 23,779,079,558.64
  5. Step 5: Solve for x
    x = 23,779,079,558.64/129,855.60
  6. Step 6: Final answer
    x = 183,119.40

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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.