Home / 427,411.08-641,116.62-111,895.02

Finding the Fourth Proportional to 427,411.08, 641,116.62 and 111,895.02

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Solution

The fourth proportional to 427,411.08, 641,116.62 and 111,895.02 is: 167,842.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,411.08 : 641,116.62 = 111,895.02 : x
  2. Step 2: Convert to fraction form
    427,411.08/641,116.62 = 111,895.02/x
  3. Step 3: Cross multiply
    427,411.08x = 641,116.62 × 111,895.02
  4. Step 4: Simplify right side
    427,411.08x = 71,737,757,017.23
  5. Step 5: Solve for x
    x = 71,737,757,017.23/427,411.08
  6. Step 6: Final answer
    x = 167,842.53

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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.