Home / 156,257.72-215,576.16-115,519.70

Finding the Fourth Proportional to 156,257.72, 215,576.16 and 115,519.70

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Solution

The fourth proportional to 156,257.72, 215,576.16 and 115,519.70 is: 159,373.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,257.72 : 215,576.16 = 115,519.70 : x
  2. Step 2: Convert to fraction form
    156,257.72/215,576.16 = 115,519.70/x
  3. Step 3: Cross multiply
    156,257.72x = 215,576.16 × 115,519.70
  4. Step 4: Simplify right side
    156,257.72x = 24,903,293,330.35
  5. Step 5: Solve for x
    x = 24,903,293,330.35/156,257.72
  6. Step 6: Final answer
    x = 159,373.20

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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.