Home / 154,612.45-231,946.35-79,712.48

Finding the Fourth Proportional to 154,612.45, 231,946.35 and 79,712.48

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Solution

The fourth proportional to 154,612.45, 231,946.35 and 79,712.48 is: 119,582.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,612.45 : 231,946.35 = 79,712.48 : x
  2. Step 2: Convert to fraction form
    154,612.45/231,946.35 = 79,712.48/x
  3. Step 3: Cross multiply
    154,612.45x = 231,946.35 × 79,712.48
  4. Step 4: Simplify right side
    154,612.45x = 18,489,018,785.45
  5. Step 5: Solve for x
    x = 18,489,018,785.45/154,612.45
  6. Step 6: Final answer
    x = 119,582.99

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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.