Home / 129,972.35-179,361.85-70,356.35

Finding the Fourth Proportional to 129,972.35, 179,361.85 and 70,356.35

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Solution

The fourth proportional to 129,972.35, 179,361.85 and 70,356.35 is: 97,091.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,972.35 : 179,361.85 = 70,356.35 : x
  2. Step 2: Convert to fraction form
    129,972.35/179,361.85 = 70,356.35/x
  3. Step 3: Cross multiply
    129,972.35x = 179,361.85 × 70,356.35
  4. Step 4: Simplify right side
    129,972.35x = 12,619,244,374.33
  5. Step 5: Solve for x
    x = 12,619,244,374.33/129,972.35
  6. Step 6: Final answer
    x = 97,091.76

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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.