Home / 132,078.69-198,131.88-57,206.40

Finding the Fourth Proportional to 132,078.69, 198,131.88 and 57,206.40

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Solution

The fourth proportional to 132,078.69, 198,131.88 and 57,206.40 is: 85,815.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,078.69 : 198,131.88 = 57,206.40 : x
  2. Step 2: Convert to fraction form
    132,078.69/198,131.88 = 57,206.40/x
  3. Step 3: Cross multiply
    132,078.69x = 198,131.88 × 57,206.40
  4. Step 4: Simplify right side
    132,078.69x = 11,334,411,580.03
  5. Step 5: Solve for x
    x = 11,334,411,580.03/132,078.69
  6. Step 6: Final answer
    x = 85,815.60

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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.