Home / 156,624.55-216,142.02-85,004.59

Finding the Fourth Proportional to 156,624.55, 216,142.02 and 85,004.59

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Solution

The fourth proportional to 156,624.55, 216,142.02 and 85,004.59 is: 117,306.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,624.55 : 216,142.02 = 85,004.59 : x
  2. Step 2: Convert to fraction form
    156,624.55/216,142.02 = 85,004.59/x
  3. Step 3: Cross multiply
    156,624.55x = 216,142.02 × 85,004.59
  4. Step 4: Simplify right side
    156,624.55x = 18,373,063,791.87
  5. Step 5: Solve for x
    x = 18,373,063,791.87/156,624.55
  6. Step 6: Final answer
    x = 117,306.41

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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.