Home / 82,885.20-124,181.40-80,144.40

Finding the Fourth Proportional to 82,885.20, 124,181.40 and 80,144.40

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Solution

The fourth proportional to 82,885.20, 124,181.40 and 80,144.40 is: 120,075.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,885.20 : 124,181.40 = 80,144.40 : x
  2. Step 2: Convert to fraction form
    82,885.20/124,181.40 = 80,144.40/x
  3. Step 3: Cross multiply
    82,885.20x = 124,181.40 × 80,144.40
  4. Step 4: Simplify right side
    82,885.20x = 9,952,443,794.16
  5. Step 5: Solve for x
    x = 9,952,443,794.16/82,885.20
  6. Step 6: Final answer
    x = 120,075.04

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1.5x scale

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.