Home / 149,743.04-206,643.83-81,759.80

Finding the Fourth Proportional to 149,743.04, 206,643.83 and 81,759.80

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Solution

The fourth proportional to 149,743.04, 206,643.83 and 81,759.80 is: 112,827.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,743.04 : 206,643.83 = 81,759.80 : x
  2. Step 2: Convert to fraction form
    149,743.04/206,643.83 = 81,759.80/x
  3. Step 3: Cross multiply
    149,743.04x = 206,643.83 × 81,759.80
  4. Step 4: Simplify right side
    149,743.04x = 16,895,158,201.71
  5. Step 5: Solve for x
    x = 16,895,158,201.71/149,743.04
  6. Step 6: Final answer
    x = 112,827.67

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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.