Home / 156,164.78-215,507.48-84,544.81

Finding the Fourth Proportional to 156,164.78, 215,507.48 and 84,544.81

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Solution

The fourth proportional to 156,164.78, 215,507.48 and 84,544.81 is: 116,671.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,164.78 : 215,507.48 = 84,544.81 : x
  2. Step 2: Convert to fraction form
    156,164.78/215,507.48 = 84,544.81/x
  3. Step 3: Cross multiply
    156,164.78x = 215,507.48 × 84,544.81
  4. Step 4: Simplify right side
    156,164.78x = 18,220,037,988.69
  5. Step 5: Solve for x
    x = 18,220,037,988.69/156,164.78
  6. Step 6: Final answer
    x = 116,671.88

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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.