Home / 125,189.45-172,768.95-76,796.83

Finding the Fourth Proportional to 125,189.45, 172,768.95 and 76,796.83

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Solution

The fourth proportional to 125,189.45, 172,768.95 and 76,796.83 is: 105,984.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,189.45 : 172,768.95 = 76,796.83 : x
  2. Step 2: Convert to fraction form
    125,189.45/172,768.95 = 76,796.83/x
  3. Step 3: Cross multiply
    125,189.45x = 172,768.95 × 76,796.83
  4. Step 4: Simplify right side
    125,189.45x = 13,268,106,926.56
  5. Step 5: Solve for x
    x = 13,268,106,926.56/125,189.45
  6. Step 6: Final answer
    x = 105,984.23

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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.