Home / 128,392.14-192,612.33-58,276.38

Finding the Fourth Proportional to 128,392.14, 192,612.33 and 58,276.38

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Solution

The fourth proportional to 128,392.14, 192,612.33 and 58,276.38 is: 87,425.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,392.14 : 192,612.33 = 58,276.38 : x
  2. Step 2: Convert to fraction form
    128,392.14/192,612.33 = 58,276.38/x
  3. Step 3: Cross multiply
    128,392.14x = 192,612.33 × 58,276.38
  4. Step 4: Simplify right side
    128,392.14x = 11,224,749,335.77
  5. Step 5: Solve for x
    x = 11,224,749,335.77/128,392.14
  6. Step 6: Final answer
    x = 87,425.52

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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.