Home / 192,904.34-289,006.58-142,428.38

Finding the Fourth Proportional to 192,904.34, 289,006.58 and 142,428.38

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Solution

The fourth proportional to 192,904.34, 289,006.58 and 142,428.38 is: 213,384.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,904.34 : 289,006.58 = 142,428.38 : x
  2. Step 2: Convert to fraction form
    192,904.34/289,006.58 = 142,428.38/x
  3. Step 3: Cross multiply
    192,904.34x = 289,006.58 × 142,428.38
  4. Step 4: Simplify right side
    192,904.34x = 41,162,737,909.78
  5. Step 5: Solve for x
    x = 41,162,737,909.78/192,904.34
  6. Step 6: Final answer
    x = 213,384.20

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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.