Home / 136,650.51-188,578.06-76,225.08

Finding the Fourth Proportional to 136,650.51, 188,578.06 and 76,225.08

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Solution

The fourth proportional to 136,650.51, 188,578.06 and 76,225.08 is: 105,190.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,650.51 : 188,578.06 = 76,225.08 : x
  2. Step 2: Convert to fraction form
    136,650.51/188,578.06 = 76,225.08/x
  3. Step 3: Cross multiply
    136,650.51x = 188,578.06 × 76,225.08
  4. Step 4: Simplify right side
    136,650.51x = 14,374,378,226.35
  5. Step 5: Solve for x
    x = 14,374,378,226.35/136,650.51
  6. Step 6: Final answer
    x = 105,190.81

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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.