Home / 156,346.50-215,936.38-105,958.02

Finding the Fourth Proportional to 156,346.50, 215,936.38 and 105,958.02

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Solution

The fourth proportional to 156,346.50, 215,936.38 and 105,958.02 is: 146,342.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,346.50 : 215,936.38 = 105,958.02 : x
  2. Step 2: Convert to fraction form
    156,346.50/215,936.38 = 105,958.02/x
  3. Step 3: Cross multiply
    156,346.50x = 215,936.38 × 105,958.02
  4. Step 4: Simplify right side
    156,346.50x = 22,880,191,270.77
  5. Step 5: Solve for x
    x = 22,880,191,270.77/156,346.50
  6. Step 6: Final answer
    x = 146,342.84

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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.