Home / 103,039.64-155,354.07-102,399.94

Finding the Fourth Proportional to 103,039.64, 155,354.07 and 102,399.94

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Solution

The fourth proportional to 103,039.64, 155,354.07 and 102,399.94 is: 154,389.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,039.64 : 155,354.07 = 102,399.94 : x
  2. Step 2: Convert to fraction form
    103,039.64/155,354.07 = 102,399.94/x
  3. Step 3: Cross multiply
    103,039.64x = 155,354.07 × 102,399.94
  4. Step 4: Simplify right side
    103,039.64x = 15,908,247,058.37
  5. Step 5: Solve for x
    x = 15,908,247,058.37/103,039.64
  6. Step 6: Final answer
    x = 154,389.59

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.