Home / 156,153.11-215,489.50-84,531.56

Finding the Fourth Proportional to 156,153.11, 215,489.50 and 84,531.56

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Solution

The fourth proportional to 156,153.11, 215,489.50 and 84,531.56 is: 116,652.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,153.11 : 215,489.50 = 84,531.56 : x
  2. Step 2: Convert to fraction form
    156,153.11/215,489.50 = 84,531.56/x
  3. Step 3: Cross multiply
    156,153.11x = 215,489.50 × 84,531.56
  4. Step 4: Simplify right side
    156,153.11x = 18,215,662,309.84
  5. Step 5: Solve for x
    x = 18,215,662,309.84/156,153.11
  6. Step 6: Final answer
    x = 116,652.58

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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.