Home / 118,932.20-164,212.52-76,564.52

Finding the Fourth Proportional to 118,932.20, 164,212.52 and 76,564.52

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Solution

The fourth proportional to 118,932.20, 164,212.52 and 76,564.52 is: 105,714.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,932.20 : 164,212.52 = 76,564.52 : x
  2. Step 2: Convert to fraction form
    118,932.20/164,212.52 = 76,564.52/x
  3. Step 3: Cross multiply
    118,932.20x = 164,212.52 × 76,564.52
  4. Step 4: Simplify right side
    118,932.20x = 12,572,852,771.79
  5. Step 5: Solve for x
    x = 12,572,852,771.79/118,932.20
  6. Step 6: Final answer
    x = 105,714.46

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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.