Home / 132,890.63-199,368.74-39,396.38

Finding the Fourth Proportional to 132,890.63, 199,368.74 and 39,396.38

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Solution

The fourth proportional to 132,890.63, 199,368.74 and 39,396.38 is: 59,104.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,890.63 : 199,368.74 = 39,396.38 : x
  2. Step 2: Convert to fraction form
    132,890.63/199,368.74 = 39,396.38/x
  3. Step 3: Cross multiply
    132,890.63x = 199,368.74 × 39,396.38
  4. Step 4: Simplify right side
    132,890.63x = 7,854,405,742.81
  5. Step 5: Solve for x
    x = 7,854,405,742.81/132,890.63
  6. Step 6: Final answer
    x = 59,104.29

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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.