Home / 156,009.60-234,013.14-81,091.08

Finding the Fourth Proportional to 156,009.60, 234,013.14 and 81,091.08

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Solution

The fourth proportional to 156,009.60, 234,013.14 and 81,091.08 is: 121,635.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,009.60 : 234,013.14 = 81,091.08 : x
  2. Step 2: Convert to fraction form
    156,009.60/234,013.14 = 81,091.08/x
  3. Step 3: Cross multiply
    156,009.60x = 234,013.14 × 81,091.08
  4. Step 4: Simplify right side
    156,009.60x = 18,976,378,256.79
  5. Step 5: Solve for x
    x = 18,976,378,256.79/156,009.60
  6. Step 6: Final answer
    x = 121,635.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.