Home / 149,007.40-205,579.88-84,469.71

Finding the Fourth Proportional to 149,007.40, 205,579.88 and 84,469.71

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Solution

The fourth proportional to 149,007.40, 205,579.88 and 84,469.71 is: 116,539.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,007.40 : 205,579.88 = 84,469.71 : x
  2. Step 2: Convert to fraction form
    149,007.40/205,579.88 = 84,469.71/x
  3. Step 3: Cross multiply
    149,007.40x = 205,579.88 × 84,469.71
  4. Step 4: Simplify right side
    149,007.40x = 17,365,273,985.91
  5. Step 5: Solve for x
    x = 17,365,273,985.91/149,007.40
  6. Step 6: Final answer
    x = 116,539.68

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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.