Home / 149,028.10-205,606.54-84,487.88

Finding the Fourth Proportional to 149,028.10, 205,606.54 and 84,487.88

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Solution

The fourth proportional to 149,028.10, 205,606.54 and 84,487.88 is: 116,563.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,028.10 : 205,606.54 = 84,487.88 : x
  2. Step 2: Convert to fraction form
    149,028.10/205,606.54 = 84,487.88/x
  3. Step 3: Cross multiply
    149,028.10x = 205,606.54 × 84,487.88
  4. Step 4: Simplify right side
    149,028.10x = 17,371,260,678.74
  5. Step 5: Solve for x
    x = 17,371,260,678.74/149,028.10
  6. Step 6: Final answer
    x = 116,563.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.