Home / 154,630.92-231,931.74-49,421.64

Finding the Fourth Proportional to 154,630.92, 231,931.74 and 49,421.64

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Solution

The fourth proportional to 154,630.92, 231,931.74 and 49,421.64 is: 74,127.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,630.92 : 231,931.74 = 49,421.64 : x
  2. Step 2: Convert to fraction form
    154,630.92/231,931.74 = 49,421.64/x
  3. Step 3: Cross multiply
    154,630.92x = 231,931.74 × 49,421.64
  4. Step 4: Simplify right side
    154,630.92x = 11,462,446,958.85
  5. Step 5: Solve for x
    x = 11,462,446,958.85/154,630.92
  6. Step 6: Final answer
    x = 74,127.78

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1.5x scale

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.