Home / 156,171.03-215,516.16-84,551.10

Finding the Fourth Proportional to 156,171.03, 215,516.16 and 84,551.10

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Solution

The fourth proportional to 156,171.03, 215,516.16 and 84,551.10 is: 116,680.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,171.03 : 215,516.16 = 84,551.10 : x
  2. Step 2: Convert to fraction form
    156,171.03/215,516.16 = 84,551.10/x
  3. Step 3: Cross multiply
    156,171.03x = 215,516.16 × 84,551.10
  4. Step 4: Simplify right side
    156,171.03x = 18,222,128,395.78
  5. Step 5: Solve for x
    x = 18,222,128,395.78/156,171.03
  6. Step 6: Final answer
    x = 116,680.59

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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.