Home / 155,847.40-215,042.10-92,161.96

Finding the Fourth Proportional to 155,847.40, 215,042.10 and 92,161.96

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Solution

The fourth proportional to 155,847.40, 215,042.10 and 92,161.96 is: 127,167.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,847.40 : 215,042.10 = 92,161.96 : x
  2. Step 2: Convert to fraction form
    155,847.40/215,042.10 = 92,161.96/x
  3. Step 3: Cross multiply
    155,847.40x = 215,042.10 × 92,161.96
  4. Step 4: Simplify right side
    155,847.40x = 19,818,701,418.52
  5. Step 5: Solve for x
    x = 19,818,701,418.52/155,847.40
  6. Step 6: Final answer
    x = 127,167.35

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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.