Home / 156,156.72-215,496.40-84,537.36

Finding the Fourth Proportional to 156,156.72, 215,496.40 and 84,537.36

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Solution

The fourth proportional to 156,156.72, 215,496.40 and 84,537.36 is: 116,661.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,156.72 : 215,496.40 = 84,537.36 : x
  2. Step 2: Convert to fraction form
    156,156.72/215,496.40 = 84,537.36/x
  3. Step 3: Cross multiply
    156,156.72x = 215,496.40 × 84,537.36
  4. Step 4: Simplify right side
    156,156.72x = 18,217,496,745.50
  5. Step 5: Solve for x
    x = 18,217,496,745.50/156,156.72
  6. Step 6: Final answer
    x = 116,661.63

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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.