Home / 123,620.12-170,573.54-69,173.39

Finding the Fourth Proportional to 123,620.12, 170,573.54 and 69,173.39

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Solution

The fourth proportional to 123,620.12, 170,573.54 and 69,173.39 is: 95,446.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,620.12 : 170,573.54 = 69,173.39 : x
  2. Step 2: Convert to fraction form
    123,620.12/170,573.54 = 69,173.39/x
  3. Step 3: Cross multiply
    123,620.12x = 170,573.54 × 69,173.39
  4. Step 4: Simplify right side
    123,620.12x = 11,799,148,807.37
  5. Step 5: Solve for x
    x = 11,799,148,807.37/123,620.12
  6. Step 6: Final answer
    x = 95,446.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.