Home / 156,473.29-234,816.81-86,401.81

Finding the Fourth Proportional to 156,473.29, 234,816.81 and 86,401.81

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Solution

The fourth proportional to 156,473.29, 234,816.81 and 86,401.81 is: 129,661.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,473.29 : 234,816.81 = 86,401.81 : x
  2. Step 2: Convert to fraction form
    156,473.29/234,816.81 = 86,401.81/x
  3. Step 3: Cross multiply
    156,473.29x = 234,816.81 × 86,401.81
  4. Step 4: Simplify right side
    156,473.29x = 20,288,597,402.43
  5. Step 5: Solve for x
    x = 20,288,597,402.43/156,473.29
  6. Step 6: Final answer
    x = 129,661.73

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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.