Home / 156,155.90-215,496.86-84,537.45

Finding the Fourth Proportional to 156,155.90, 215,496.86 and 84,537.45

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Solution

The fourth proportional to 156,155.90, 215,496.86 and 84,537.45 is: 116,662.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,155.90 : 215,496.86 = 84,537.45 : x
  2. Step 2: Convert to fraction form
    156,155.90/215,496.86 = 84,537.45/x
  3. Step 3: Cross multiply
    156,155.90x = 215,496.86 × 84,537.45
  4. Step 4: Simplify right side
    156,155.90x = 18,217,554,604.72
  5. Step 5: Solve for x
    x = 18,217,554,604.72/156,155.90
  6. Step 6: Final answer
    x = 116,662.61

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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.