Home / 128,523.32-192,785-35,042.84

Finding the Fourth Proportional to 128,523.32, 192,785 and 35,042.84

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Solution

The fourth proportional to 128,523.32, 192,785 and 35,042.84 is: 52,564.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,523.32 : 192,785 = 35,042.84 : x
  2. Step 2: Convert to fraction form
    128,523.32/192,785 = 35,042.84/x
  3. Step 3: Cross multiply
    128,523.32x = 192,785 × 35,042.84
  4. Step 4: Simplify right side
    128,523.32x = 6,755,733,909.40
  5. Step 5: Solve for x
    x = 6,755,733,909.40/128,523.32
  6. Step 6: Final answer
    x = 52,564.27

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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.