Home / 156,730.70-216,289.14-85,110.70

Finding the Fourth Proportional to 156,730.70, 216,289.14 and 85,110.70

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Solution

The fourth proportional to 156,730.70, 216,289.14 and 85,110.70 is: 117,453.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,730.70 : 216,289.14 = 85,110.70 : x
  2. Step 2: Convert to fraction form
    156,730.70/216,289.14 = 85,110.70/x
  3. Step 3: Cross multiply
    156,730.70x = 216,289.14 × 85,110.70
  4. Step 4: Simplify right side
    156,730.70x = 18,408,520,107.80
  5. Step 5: Solve for x
    x = 18,408,520,107.80/156,730.70
  6. Step 6: Final answer
    x = 117,453.19

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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.