Home / 135,320.08-186,736.96-74,890.84

Finding the Fourth Proportional to 135,320.08, 186,736.96 and 74,890.84

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Solution

The fourth proportional to 135,320.08, 186,736.96 and 74,890.84 is: 103,346.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,320.08 : 186,736.96 = 74,890.84 : x
  2. Step 2: Convert to fraction form
    135,320.08/186,736.96 = 74,890.84/x
  3. Step 3: Cross multiply
    135,320.08x = 186,736.96 × 74,890.84
  4. Step 4: Simplify right side
    135,320.08x = 13,984,887,793.45
  5. Step 5: Solve for x
    x = 13,984,887,793.45/135,320.08
  6. Step 6: Final answer
    x = 103,346.73

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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.