Home / 156,628.47-216,147.50-85,008.49

Finding the Fourth Proportional to 156,628.47, 216,147.50 and 85,008.49

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Solution

The fourth proportional to 156,628.47, 216,147.50 and 85,008.49 is: 117,311.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,628.47 : 216,147.50 = 85,008.49 : x
  2. Step 2: Convert to fraction form
    156,628.47/216,147.50 = 85,008.49/x
  3. Step 3: Cross multiply
    156,628.47x = 216,147.50 × 85,008.49
  4. Step 4: Simplify right side
    156,628.47x = 18,374,372,592.28
  5. Step 5: Solve for x
    x = 18,374,372,592.28/156,628.47
  6. Step 6: Final answer
    x = 117,311.83

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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.