Home / 156,624.82-216,134.86-85,004.21

Finding the Fourth Proportional to 156,624.82, 216,134.86 and 85,004.21

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Solution

The fourth proportional to 156,624.82, 216,134.86 and 85,004.21 is: 117,301.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,624.82 : 216,134.86 = 85,004.21 : x
  2. Step 2: Convert to fraction form
    156,624.82/216,134.86 = 85,004.21/x
  3. Step 3: Cross multiply
    156,624.82x = 216,134.86 × 85,004.21
  4. Step 4: Simplify right side
    156,624.82x = 18,372,373,027.76
  5. Step 5: Solve for x
    x = 18,372,373,027.76/156,624.82
  6. Step 6: Final answer
    x = 117,301.80

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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.