Home / 136,295.12-188,085.80-75,864.80

Finding the Fourth Proportional to 136,295.12, 188,085.80 and 75,864.80

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Solution

The fourth proportional to 136,295.12, 188,085.80 and 75,864.80 is: 104,692.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,295.12 : 188,085.80 = 75,864.80 : x
  2. Step 2: Convert to fraction form
    136,295.12/188,085.80 = 75,864.80/x
  3. Step 3: Cross multiply
    136,295.12x = 188,085.80 × 75,864.80
  4. Step 4: Simplify right side
    136,295.12x = 14,269,091,599.84
  5. Step 5: Solve for x
    x = 14,269,091,599.84/136,295.12
  6. Step 6: Final answer
    x = 104,692.61

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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.