Home / 156,568.50-216,058.23-84,945.78

Finding the Fourth Proportional to 156,568.50, 216,058.23 and 84,945.78

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Solution

The fourth proportional to 156,568.50, 216,058.23 and 84,945.78 is: 117,221.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,568.50 : 216,058.23 = 84,945.78 : x
  2. Step 2: Convert to fraction form
    156,568.50/216,058.23 = 84,945.78/x
  3. Step 3: Cross multiply
    156,568.50x = 216,058.23 × 84,945.78
  4. Step 4: Simplify right side
    156,568.50x = 18,353,234,872.77
  5. Step 5: Solve for x
    x = 18,353,234,872.77/156,568.50
  6. Step 6: Final answer
    x = 117,221.76

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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.