Home / 137,380.07-189,582.26-76,950.56

Finding the Fourth Proportional to 137,380.07, 189,582.26 and 76,950.56

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Solution

The fourth proportional to 137,380.07, 189,582.26 and 76,950.56 is: 106,190.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,380.07 : 189,582.26 = 76,950.56 : x
  2. Step 2: Convert to fraction form
    137,380.07/189,582.26 = 76,950.56/x
  3. Step 3: Cross multiply
    137,380.07x = 189,582.26 × 76,950.56
  4. Step 4: Simplify right side
    137,380.07x = 14,588,459,740.40
  5. Step 5: Solve for x
    x = 14,588,459,740.40/137,380.07
  6. Step 6: Final answer
    x = 106,190.51

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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.