Home / 156,175.72-215,522.18-84,555.80

Finding the Fourth Proportional to 156,175.72, 215,522.18 and 84,555.80

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Solution

The fourth proportional to 156,175.72, 215,522.18 and 84,555.80 is: 116,686.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,175.72 : 215,522.18 = 84,555.80 : x
  2. Step 2: Convert to fraction form
    156,175.72/215,522.18 = 84,555.80/x
  3. Step 3: Cross multiply
    156,175.72x = 215,522.18 × 84,555.80
  4. Step 4: Simplify right side
    156,175.72x = 18,223,650,347.64
  5. Step 5: Solve for x
    x = 18,223,650,347.64/156,175.72
  6. Step 6: Final answer
    x = 116,686.83

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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.