Home / 103,623.10-142,380.18-82,365.46

Finding the Fourth Proportional to 103,623.10, 142,380.18 and 82,365.46

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Solution

The fourth proportional to 103,623.10, 142,380.18 and 82,365.46 is: 113,171.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,623.10 : 142,380.18 = 82,365.46 : x
  2. Step 2: Convert to fraction form
    103,623.10/142,380.18 = 82,365.46/x
  3. Step 3: Cross multiply
    103,623.10x = 142,380.18 × 82,365.46
  4. Step 4: Simplify right side
    103,623.10x = 11,727,208,664.63
  5. Step 5: Solve for x
    x = 11,727,208,664.63/103,623.10
  6. Step 6: Final answer
    x = 113,171.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.