Home / 136,660.12-188,592-76,234.72

Finding the Fourth Proportional to 136,660.12, 188,592 and 76,234.72

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Solution

The fourth proportional to 136,660.12, 188,592 and 76,234.72 is: 105,204.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,660.12 : 188,592 = 76,234.72 : x
  2. Step 2: Convert to fraction form
    136,660.12/188,592 = 76,234.72/x
  3. Step 3: Cross multiply
    136,660.12x = 188,592 × 76,234.72
  4. Step 4: Simplify right side
    136,660.12x = 14,377,258,314.24
  5. Step 5: Solve for x
    x = 14,377,258,314.24/136,660.12
  6. Step 6: Final answer
    x = 105,204.49

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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.