Home / 154,131.42-212,772.51-97,619.34

Finding the Fourth Proportional to 154,131.42, 212,772.51 and 97,619.34

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Solution

The fourth proportional to 154,131.42, 212,772.51 and 97,619.34 is: 134,759.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,131.42 : 212,772.51 = 97,619.34 : x
  2. Step 2: Convert to fraction form
    154,131.42/212,772.51 = 97,619.34/x
  3. Step 3: Cross multiply
    154,131.42x = 212,772.51 × 97,619.34
  4. Step 4: Simplify right side
    154,131.42x = 20,770,711,996.34
  5. Step 5: Solve for x
    x = 20,770,711,996.34/154,131.42
  6. Step 6: Final answer
    x = 134,759.75

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1.5x scale

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.