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Finding the Fourth Proportional to 154,700.48, 213,479.52 and 87,632.96

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Solution

The fourth proportional to 154,700.48, 213,479.52 and 87,632.96 is: 120,929.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,700.48 : 213,479.52 = 87,632.96 : x
  2. Step 2: Convert to fraction form
    154,700.48/213,479.52 = 87,632.96/x
  3. Step 3: Cross multiply
    154,700.48x = 213,479.52 × 87,632.96
  4. Step 4: Simplify right side
    154,700.48x = 18,707,842,236.98
  5. Step 5: Solve for x
    x = 18,707,842,236.98/154,700.48
  6. Step 6: Final answer
    x = 120,929.44

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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.