Home / 156,472.29-234,815.31-86,400.81

Finding the Fourth Proportional to 156,472.29, 234,815.31 and 86,400.81

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Solution

The fourth proportional to 156,472.29, 234,815.31 and 86,400.81 is: 129,660.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,472.29 : 234,815.31 = 86,400.81 : x
  2. Step 2: Convert to fraction form
    156,472.29/234,815.31 = 86,400.81/x
  3. Step 3: Cross multiply
    156,472.29x = 234,815.31 × 86,400.81
  4. Step 4: Simplify right side
    156,472.29x = 20,288,232,984.40
  5. Step 5: Solve for x
    x = 20,288,232,984.40/156,472.29
  6. Step 6: Final answer
    x = 129,660.23

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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.