Home / 149,529.90-206,355.87-85,880.46

Finding the Fourth Proportional to 149,529.90, 206,355.87 and 85,880.46

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Solution

The fourth proportional to 149,529.90, 206,355.87 and 85,880.46 is: 118,517.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,529.90 : 206,355.87 = 85,880.46 : x
  2. Step 2: Convert to fraction form
    149,529.90/206,355.87 = 85,880.46/x
  3. Step 3: Cross multiply
    149,529.90x = 206,355.87 × 85,880.46
  4. Step 4: Simplify right side
    149,529.90x = 17,721,937,039.30
  5. Step 5: Solve for x
    x = 17,721,937,039.30/149,529.90
  6. Step 6: Final answer
    x = 118,517.68

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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.