Home / 123,419,495.04-170,336,253.24-76,391,652.84

Finding the Fourth Proportional to 123,419,495.04, 170,336,253.24 and 76,391,652.84

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Solution

The fourth proportional to 123,419,495.04, 170,336,253.24 and 76,391,652.84 is: 105,431,219.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,419,495.04 : 170,336,253.24 = 76,391,652.84 : x
  2. Step 2: Convert to fraction form
    123,419,495.04/170,336,253.24 = 76,391,652.84/x
  3. Step 3: Cross multiply
    123,419,495.04x = 170,336,253.24 × 76,391,652.84
  4. Step 4: Simplify right side
    123,419,495.04x = 13,012,267,923,576,406
  5. Step 5: Solve for x
    x = 13,012,267,923,576,406/123,419,495.04
  6. Step 6: Final answer
    x = 105,431,219.92

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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.