Home / 136,846.05-188,847.83-76,416.51

Finding the Fourth Proportional to 136,846.05, 188,847.83 and 76,416.51

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Solution

The fourth proportional to 136,846.05, 188,847.83 and 76,416.51 is: 105,454.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,846.05 : 188,847.83 = 76,416.51 : x
  2. Step 2: Convert to fraction form
    136,846.05/188,847.83 = 76,416.51/x
  3. Step 3: Cross multiply
    136,846.05x = 188,847.83 × 76,416.51
  4. Step 4: Simplify right side
    136,846.05x = 14,431,092,089.67
  5. Step 5: Solve for x
    x = 14,431,092,089.67/136,846.05
  6. Step 6: Final answer
    x = 105,454.94

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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.