Home / 154,421.20-231,631.80-148,516.30

Finding the Fourth Proportional to 154,421.20, 231,631.80 and 148,516.30

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Solution

The fourth proportional to 154,421.20, 231,631.80 and 148,516.30 is: 222,774.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,421.20 : 231,631.80 = 148,516.30 : x
  2. Step 2: Convert to fraction form
    154,421.20/231,631.80 = 148,516.30/x
  3. Step 3: Cross multiply
    154,421.20x = 231,631.80 × 148,516.30
  4. Step 4: Simplify right side
    154,421.20x = 34,401,097,898.34
  5. Step 5: Solve for x
    x = 34,401,097,898.34/154,421.20
  6. Step 6: Final answer
    x = 222,774.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.