Home / 129,822.14-179,042.40-84,483.81

Finding the Fourth Proportional to 129,822.14, 179,042.40 and 84,483.81

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Solution

The fourth proportional to 129,822.14, 179,042.40 and 84,483.81 is: 116,514.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,822.14 : 179,042.40 = 84,483.81 : x
  2. Step 2: Convert to fraction form
    129,822.14/179,042.40 = 84,483.81/x
  3. Step 3: Cross multiply
    129,822.14x = 179,042.40 × 84,483.81
  4. Step 4: Simplify right side
    129,822.14x = 15,126,184,103.54
  5. Step 5: Solve for x
    x = 15,126,184,103.54/129,822.14
  6. Step 6: Final answer
    x = 116,514.67

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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.