Home / 125,020.11-172,528.83-71,307.85

Finding the Fourth Proportional to 125,020.11, 172,528.83 and 71,307.85

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Solution

The fourth proportional to 125,020.11, 172,528.83 and 71,307.85 is: 98,405.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,020.11 : 172,528.83 = 71,307.85 : x
  2. Step 2: Convert to fraction form
    125,020.11/172,528.83 = 71,307.85/x
  3. Step 3: Cross multiply
    125,020.11x = 172,528.83 × 71,307.85
  4. Step 4: Simplify right side
    125,020.11x = 12,302,659,498.99
  5. Step 5: Solve for x
    x = 12,302,659,498.99/125,020.11
  6. Step 6: Final answer
    x = 98,405.44

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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.