Home / 82,442.60-123,518.10-69,903.80

Finding the Fourth Proportional to 82,442.60, 123,518.10 and 69,903.80

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Solution

The fourth proportional to 82,442.60, 123,518.10 and 69,903.80 is: 104,732.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,442.60 : 123,518.10 = 69,903.80 : x
  2. Step 2: Convert to fraction form
    82,442.60/123,518.10 = 69,903.80/x
  3. Step 3: Cross multiply
    82,442.60x = 123,518.10 × 69,903.80
  4. Step 4: Simplify right side
    82,442.60x = 8,634,384,558.78
  5. Step 5: Solve for x
    x = 8,634,384,558.78/82,442.60
  6. Step 6: Final answer
    x = 104,732.07

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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.