Home / 82,623.88-123,897.54-66,790.00

Finding the Fourth Proportional to 82,623.88, 123,897.54 and 66,790.00

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Solution

The fourth proportional to 82,623.88, 123,897.54 and 66,790.00 is: 100,154.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,623.88 : 123,897.54 = 66,790.00 : x
  2. Step 2: Convert to fraction form
    82,623.88/123,897.54 = 66,790.00/x
  3. Step 3: Cross multiply
    82,623.88x = 123,897.54 × 66,790.00
  4. Step 4: Simplify right side
    82,623.88x = 8,275,116,386.86
  5. Step 5: Solve for x
    x = 8,275,116,386.86/82,623.88
  6. Step 6: Final answer
    x = 100,154.06

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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.