Home / 154,031.80-212,450.10-97,388.56

Finding the Fourth Proportional to 154,031.80, 212,450.10 and 97,388.56

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Solution

The fourth proportional to 154,031.80, 212,450.10 and 97,388.56 is: 134,324.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,031.80 : 212,450.10 = 97,388.56 : x
  2. Step 2: Convert to fraction form
    154,031.80/212,450.10 = 97,388.56/x
  3. Step 3: Cross multiply
    154,031.80x = 212,450.10 × 97,388.56
  4. Step 4: Simplify right side
    154,031.80x = 20,690,209,310.86
  5. Step 5: Solve for x
    x = 20,690,209,310.86/154,031.80
  6. Step 6: Final answer
    x = 134,324.27

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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.