Home / 129,837.60-194,756.40-83,181.60

Finding the Fourth Proportional to 129,837.60, 194,756.40 and 83,181.60

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Solution

The fourth proportional to 129,837.60, 194,756.40 and 83,181.60 is: 124,772.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,837.60 : 194,756.40 = 83,181.60 : x
  2. Step 2: Convert to fraction form
    129,837.60/194,756.40 = 83,181.60/x
  3. Step 3: Cross multiply
    129,837.60x = 194,756.40 × 83,181.60
  4. Step 4: Simplify right side
    129,837.60x = 16,200,148,962.24
  5. Step 5: Solve for x
    x = 16,200,148,962.24/129,837.60
  6. Step 6: Final answer
    x = 124,772.40

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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.