Home / 156,111.85-215,438.28-95,715.81

Finding the Fourth Proportional to 156,111.85, 215,438.28 and 95,715.81

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Solution

The fourth proportional to 156,111.85, 215,438.28 and 95,715.81 is: 132,090.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,111.85 : 215,438.28 = 95,715.81 : x
  2. Step 2: Convert to fraction form
    156,111.85/215,438.28 = 95,715.81/x
  3. Step 3: Cross multiply
    156,111.85x = 215,438.28 × 95,715.81
  4. Step 4: Simplify right side
    156,111.85x = 20,620,848,398.02
  5. Step 5: Solve for x
    x = 20,620,848,398.02/156,111.85
  6. Step 6: Final answer
    x = 132,090.22

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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.