Home / 156,956.40-216,600.30-85,336.70

Finding the Fourth Proportional to 156,956.40, 216,600.30 and 85,336.70

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Solution

The fourth proportional to 156,956.40, 216,600.30 and 85,336.70 is: 117,764.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,956.40 : 216,600.30 = 85,336.70 : x
  2. Step 2: Convert to fraction form
    156,956.40/216,600.30 = 85,336.70/x
  3. Step 3: Cross multiply
    156,956.40x = 216,600.30 × 85,336.70
  4. Step 4: Simplify right side
    156,956.40x = 18,483,953,738.01
  5. Step 5: Solve for x
    x = 18,483,953,738.01/156,956.40
  6. Step 6: Final answer
    x = 117,764.89

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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.