Home / 102,406.29-153,627.03-31,327.21

Finding the Fourth Proportional to 102,406.29, 153,627.03 and 31,327.21

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Solution

The fourth proportional to 102,406.29, 153,627.03 and 31,327.21 is: 46,996.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,406.29 : 153,627.03 = 31,327.21 : x
  2. Step 2: Convert to fraction form
    102,406.29/153,627.03 = 31,327.21/x
  3. Step 3: Cross multiply
    102,406.29x = 153,627.03 × 31,327.21
  4. Step 4: Simplify right side
    102,406.29x = 4,812,706,230.49
  5. Step 5: Solve for x
    x = 4,812,706,230.49/102,406.29
  6. Step 6: Final answer
    x = 46,996.20

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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.