Home / 156,520.60-215,998.50-84,900.36

Finding the Fourth Proportional to 156,520.60, 215,998.50 and 84,900.36

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Solution

The fourth proportional to 156,520.60, 215,998.50 and 84,900.36 is: 117,162.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,520.60 : 215,998.50 = 84,900.36 : x
  2. Step 2: Convert to fraction form
    156,520.60/215,998.50 = 84,900.36/x
  3. Step 3: Cross multiply
    156,520.60x = 215,998.50 × 84,900.36
  4. Step 4: Simplify right side
    156,520.60x = 18,338,350,409.46
  5. Step 5: Solve for x
    x = 18,338,350,409.46/156,520.60
  6. Step 6: Final answer
    x = 117,162.54

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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.