Home / 156,160.30-215,498.64-84,539.71

Finding the Fourth Proportional to 156,160.30, 215,498.64 and 84,539.71

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Solution

The fourth proportional to 156,160.30, 215,498.64 and 84,539.71 is: 116,663.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,160.30 : 215,498.64 = 84,539.71 : x
  2. Step 2: Convert to fraction form
    156,160.30/215,498.64 = 84,539.71/x
  3. Step 3: Cross multiply
    156,160.30x = 215,498.64 × 84,539.71
  4. Step 4: Simplify right side
    156,160.30x = 18,218,192,530.99
  5. Step 5: Solve for x
    x = 18,218,192,530.99/156,160.30
  6. Step 6: Final answer
    x = 116,663.41

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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.