Home / 132,041.07-182,239.97-78,355.69

Finding the Fourth Proportional to 132,041.07, 182,239.97 and 78,355.69

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Solution

The fourth proportional to 132,041.07, 182,239.97 and 78,355.69 is: 108,144.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,041.07 : 182,239.97 = 78,355.69 : x
  2. Step 2: Convert to fraction form
    132,041.07/182,239.97 = 78,355.69/x
  3. Step 3: Cross multiply
    132,041.07x = 182,239.97 × 78,355.69
  4. Step 4: Simplify right side
    132,041.07x = 14,279,537,291.95
  5. Step 5: Solve for x
    x = 14,279,537,291.95/132,041.07
  6. Step 6: Final answer
    x = 108,144.67

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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.