Home / 136,734.28-188,692.93-76,304.28

Finding the Fourth Proportional to 136,734.28, 188,692.93 and 76,304.28

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Solution

The fourth proportional to 136,734.28, 188,692.93 and 76,304.28 is: 105,299.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,734.28 : 188,692.93 = 76,304.28 : x
  2. Step 2: Convert to fraction form
    136,734.28/188,692.93 = 76,304.28/x
  3. Step 3: Cross multiply
    136,734.28x = 188,692.93 × 76,304.28
  4. Step 4: Simplify right side
    136,734.28x = 14,398,078,164.74
  5. Step 5: Solve for x
    x = 14,398,078,164.74/136,734.28
  6. Step 6: Final answer
    x = 105,299.70

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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.