Home / 145,230.10-217,851.55-82,049.30

Finding the Fourth Proportional to 145,230.10, 217,851.55 and 82,049.30

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Solution

The fourth proportional to 145,230.10, 217,851.55 and 82,049.30 is: 123,077.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,230.10 : 217,851.55 = 82,049.30 : x
  2. Step 2: Convert to fraction form
    145,230.10/217,851.55 = 82,049.30/x
  3. Step 3: Cross multiply
    145,230.10x = 217,851.55 × 82,049.30
  4. Step 4: Simplify right side
    145,230.10x = 17,874,567,181.42
  5. Step 5: Solve for x
    x = 17,874,567,181.42/145,230.10
  6. Step 6: Final answer
    x = 123,077.57

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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.