Home / 132,742.12-183,178.18-77,556.56

Finding the Fourth Proportional to 132,742.12, 183,178.18 and 77,556.56

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Solution

The fourth proportional to 132,742.12, 183,178.18 and 77,556.56 is: 107,024.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,742.12 : 183,178.18 = 77,556.56 : x
  2. Step 2: Convert to fraction form
    132,742.12/183,178.18 = 77,556.56/x
  3. Step 3: Cross multiply
    132,742.12x = 183,178.18 × 77,556.56
  4. Step 4: Simplify right side
    132,742.12x = 14,206,669,507.86
  5. Step 5: Solve for x
    x = 14,206,669,507.86/132,742.12
  6. Step 6: Final answer
    x = 107,024.58

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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.