Home / 125,609.03-173,271.25-79,584.47

Finding the Fourth Proportional to 125,609.03, 173,271.25 and 79,584.47

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Solution

The fourth proportional to 125,609.03, 173,271.25 and 79,584.47 is: 109,782.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,609.03 : 173,271.25 = 79,584.47 : x
  2. Step 2: Convert to fraction form
    125,609.03/173,271.25 = 79,584.47/x
  3. Step 3: Cross multiply
    125,609.03x = 173,271.25 × 79,584.47
  4. Step 4: Simplify right side
    125,609.03x = 13,789,700,597.49
  5. Step 5: Solve for x
    x = 13,789,700,597.49/125,609.03
  6. Step 6: Final answer
    x = 109,782.72

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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.