Home / 149,812.76-206,824.65-102,136.16

Finding the Fourth Proportional to 149,812.76, 206,824.65 and 102,136.16

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Solution

The fourth proportional to 149,812.76, 206,824.65 and 102,136.16 is: 141,004.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,812.76 : 206,824.65 = 102,136.16 : x
  2. Step 2: Convert to fraction form
    149,812.76/206,824.65 = 102,136.16/x
  3. Step 3: Cross multiply
    149,812.76x = 206,824.65 × 102,136.16
  4. Step 4: Simplify right side
    149,812.76x = 21,124,275,544.34
  5. Step 5: Solve for x
    x = 21,124,275,544.34/149,812.76
  6. Step 6: Final answer
    x = 141,004.51

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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.