Home / 156,243.42-215,615.82-84,623.44

Finding the Fourth Proportional to 156,243.42, 215,615.82 and 84,623.44

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Solution

The fourth proportional to 156,243.42, 215,615.82 and 84,623.44 is: 116,780.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,243.42 : 215,615.82 = 84,623.44 : x
  2. Step 2: Convert to fraction form
    156,243.42/215,615.82 = 84,623.44/x
  3. Step 3: Cross multiply
    156,243.42x = 215,615.82 × 84,623.44
  4. Step 4: Simplify right side
    156,243.42x = 18,246,152,406.82
  5. Step 5: Solve for x
    x = 18,246,152,406.82/156,243.42
  6. Step 6: Final answer
    x = 116,780.29

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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.