Home / 136,783.23-205,174.64-76,032.11

Finding the Fourth Proportional to 136,783.23, 205,174.64 and 76,032.11

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Solution

The fourth proportional to 136,783.23, 205,174.64 and 76,032.11 is: 114,048.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,783.23 : 205,174.64 = 76,032.11 : x
  2. Step 2: Convert to fraction form
    136,783.23/205,174.64 = 76,032.11/x
  3. Step 3: Cross multiply
    136,783.23x = 205,174.64 × 76,032.11
  4. Step 4: Simplify right side
    136,783.23x = 15,599,860,797.69
  5. Step 5: Solve for x
    x = 15,599,860,797.69/136,783.23
  6. Step 6: Final answer
    x = 114,048.05

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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.