Home / 154,109.12-212,611.97-113,919.35

Finding the Fourth Proportional to 154,109.12, 212,611.97 and 113,919.35

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Solution

The fourth proportional to 154,109.12, 212,611.97 and 113,919.35 is: 157,165.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,109.12 : 212,611.97 = 113,919.35 : x
  2. Step 2: Convert to fraction form
    154,109.12/212,611.97 = 113,919.35/x
  3. Step 3: Cross multiply
    154,109.12x = 212,611.97 × 113,919.35
  4. Step 4: Simplify right side
    154,109.12x = 24,220,616,646.36
  5. Step 5: Solve for x
    x = 24,220,616,646.36/154,109.12
  6. Step 6: Final answer
    x = 157,165.37

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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.