Home / 402,192.09-603,287.94-102,672.57

Finding the Fourth Proportional to 402,192.09, 603,287.94 and 102,672.57

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Solution

The fourth proportional to 402,192.09, 603,287.94 and 102,672.57 is: 154,008.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,192.09 : 603,287.94 = 102,672.57 : x
  2. Step 2: Convert to fraction form
    402,192.09/603,287.94 = 102,672.57/x
  3. Step 3: Cross multiply
    402,192.09x = 603,287.94 × 102,672.57
  4. Step 4: Simplify right side
    402,192.09x = 61,941,123,249.81
  5. Step 5: Solve for x
    x = 61,941,123,249.81/402,192.09
  6. Step 6: Final answer
    x = 154,008.81

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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.