Home / 132,915.12-199,338.63-39,399

Finding the Fourth Proportional to 132,915.12, 199,338.63 and 39,399

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Solution

The fourth proportional to 132,915.12, 199,338.63 and 39,399 is: 59,088.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,915.12 : 199,338.63 = 39,399 : x
  2. Step 2: Convert to fraction form
    132,915.12/199,338.63 = 39,399/x
  3. Step 3: Cross multiply
    132,915.12x = 199,338.63 × 39,399
  4. Step 4: Simplify right side
    132,915.12x = 7,853,742,683.37
  5. Step 5: Solve for x
    x = 7,853,742,683.37/132,915.12
  6. Step 6: Final answer
    x = 59,088.41

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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.