Home / 192,905.34-289,008.08-142,429.38

Finding the Fourth Proportional to 192,905.34, 289,008.08 and 142,429.38

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Solution

The fourth proportional to 192,905.34, 289,008.08 and 142,429.38 is: 213,385.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,905.34 : 289,008.08 = 142,429.38 : x
  2. Step 2: Convert to fraction form
    192,905.34/289,008.08 = 142,429.38/x
  3. Step 3: Cross multiply
    192,905.34x = 289,008.08 × 142,429.38
  4. Step 4: Simplify right side
    192,905.34x = 41,163,241,649.39
  5. Step 5: Solve for x
    x = 41,163,241,649.39/192,905.34
  6. Step 6: Final answer
    x = 213,385.70

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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.