Home / 82,246.40-123,628.80-76,025.60

Finding the Fourth Proportional to 82,246.40, 123,628.80 and 76,025.60

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Solution

The fourth proportional to 82,246.40, 123,628.80 and 76,025.60 is: 114,278.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,246.40 : 123,628.80 = 76,025.60 : x
  2. Step 2: Convert to fraction form
    82,246.40/123,628.80 = 76,025.60/x
  3. Step 3: Cross multiply
    82,246.40x = 123,628.80 × 76,025.60
  4. Step 4: Simplify right side
    82,246.40x = 9,398,953,697.28
  5. Step 5: Solve for x
    x = 9,398,953,697.28/82,246.40
  6. Step 6: Final answer
    x = 114,278.00

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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.