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Finding the Fourth Proportional to 125,477.67, 173,191.16 and 71,779.53

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Solution

The fourth proportional to 125,477.67, 173,191.16 and 71,779.53 is: 99,074.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,477.67 : 173,191.16 = 71,779.53 : x
  2. Step 2: Convert to fraction form
    125,477.67/173,191.16 = 71,779.53/x
  3. Step 3: Cross multiply
    125,477.67x = 173,191.16 × 71,779.53
  4. Step 4: Simplify right side
    125,477.67x = 12,431,579,706.06
  5. Step 5: Solve for x
    x = 12,431,579,706.06/125,477.67
  6. Step 6: Final answer
    x = 99,074.04

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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.