Home / 156,156.36-215,494.26-84,534.54

Finding the Fourth Proportional to 156,156.36, 215,494.26 and 84,534.54

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Solution

The fourth proportional to 156,156.36, 215,494.26 and 84,534.54 is: 116,656.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,156.36 : 215,494.26 = 84,534.54 : x
  2. Step 2: Convert to fraction form
    156,156.36/215,494.26 = 84,534.54/x
  3. Step 3: Cross multiply
    156,156.36x = 215,494.26 × 84,534.54
  4. Step 4: Simplify right side
    156,156.36x = 18,216,708,141.74
  5. Step 5: Solve for x
    x = 18,216,708,141.74/156,156.36
  6. Step 6: Final answer
    x = 116,656.84

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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.