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Finding the Fourth Proportional to 125,779.85, 173,578.89 and 69,191.22

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Solution

The fourth proportional to 125,779.85, 173,578.89 and 69,191.22 is: 95,485.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,779.85 : 173,578.89 = 69,191.22 : x
  2. Step 2: Convert to fraction form
    125,779.85/173,578.89 = 69,191.22/x
  3. Step 3: Cross multiply
    125,779.85x = 173,578.89 × 69,191.22
  4. Step 4: Simplify right side
    125,779.85x = 12,010,135,165.35
  5. Step 5: Solve for x
    x = 12,010,135,165.35/125,779.85
  6. Step 6: Final answer
    x = 95,485.37

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1.5x scale

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.