Home / 427,332.12-641,034.63-111,788.52

Finding the Fourth Proportional to 427,332.12, 641,034.63 and 111,788.52

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Solution

The fourth proportional to 427,332.12, 641,034.63 and 111,788.52 is: 167,692.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,332.12 : 641,034.63 = 111,788.52 : x
  2. Step 2: Convert to fraction form
    427,332.12/641,034.63 = 111,788.52/x
  3. Step 3: Cross multiply
    427,332.12x = 641,034.63 × 111,788.52
  4. Step 4: Simplify right side
    427,332.12x = 71,660,312,556.45
  5. Step 5: Solve for x
    x = 71,660,312,556.45/427,332.12
  6. Step 6: Final answer
    x = 167,692.32

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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.