Home / 185,053.27-255,373.82-100,170.67

Finding the Fourth Proportional to 185,053.27, 255,373.82 and 100,170.67

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Solution

The fourth proportional to 185,053.27, 255,373.82 and 100,170.67 is: 138,235.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,053.27 : 255,373.82 = 100,170.67 : x
  2. Step 2: Convert to fraction form
    185,053.27/255,373.82 = 100,170.67/x
  3. Step 3: Cross multiply
    185,053.27x = 255,373.82 × 100,170.67
  4. Step 4: Simplify right side
    185,053.27x = 25,580,966,649.86
  5. Step 5: Solve for x
    x = 25,580,966,649.86/185,053.27
  6. Step 6: Final answer
    x = 138,235.69

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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.