Home / 285,631.54-394,176.45-156,561.41

Finding the Fourth Proportional to 285,631.54, 394,176.45 and 156,561.41

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Solution

The fourth proportional to 285,631.54, 394,176.45 and 156,561.41 is: 216,057.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,631.54 : 394,176.45 = 156,561.41 : x
  2. Step 2: Convert to fraction form
    285,631.54/394,176.45 = 156,561.41/x
  3. Step 3: Cross multiply
    285,631.54x = 394,176.45 × 156,561.41
  4. Step 4: Simplify right side
    285,631.54x = 61,712,819,715.77
  5. Step 5: Solve for x
    x = 61,712,819,715.77/285,631.54
  6. Step 6: Final answer
    x = 216,057.44

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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.