Home / 136,432.50-188,282.68-76,003.19

Finding the Fourth Proportional to 136,432.50, 188,282.68 and 76,003.19

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Solution

The fourth proportional to 136,432.50, 188,282.68 and 76,003.19 is: 104,887.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,432.50 : 188,282.68 = 76,003.19 : x
  2. Step 2: Convert to fraction form
    136,432.50/188,282.68 = 76,003.19/x
  3. Step 3: Cross multiply
    136,432.50x = 188,282.68 × 76,003.19
  4. Step 4: Simplify right side
    136,432.50x = 14,310,083,346.84
  5. Step 5: Solve for x
    x = 14,310,083,346.84/136,432.50
  6. Step 6: Final answer
    x = 104,887.64

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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.