Home / 154,440.30-231,660.45-121,262.70

Finding the Fourth Proportional to 154,440.30, 231,660.45 and 121,262.70

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Solution

The fourth proportional to 154,440.30, 231,660.45 and 121,262.70 is: 181,894.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,440.30 : 231,660.45 = 121,262.70 : x
  2. Step 2: Convert to fraction form
    154,440.30/231,660.45 = 121,262.70/x
  3. Step 3: Cross multiply
    154,440.30x = 231,660.45 × 121,262.70
  4. Step 4: Simplify right side
    154,440.30x = 28,091,771,650.22
  5. Step 5: Solve for x
    x = 28,091,771,650.22/154,440.30
  6. Step 6: Final answer
    x = 181,894.05

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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.