Home / 129,692.34-178,975.26-70,076.34

Finding the Fourth Proportional to 129,692.34, 178,975.26 and 70,076.34

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Solution

The fourth proportional to 129,692.34, 178,975.26 and 70,076.34 is: 96,705.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,692.34 : 178,975.26 = 70,076.34 : x
  2. Step 2: Convert to fraction form
    129,692.34/178,975.26 = 70,076.34/x
  3. Step 3: Cross multiply
    129,692.34x = 178,975.26 × 70,076.34
  4. Step 4: Simplify right side
    129,692.34x = 12,541,931,171.35
  5. Step 5: Solve for x
    x = 12,541,931,171.35/129,692.34
  6. Step 6: Final answer
    x = 96,705.26

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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.