Home / 133,289.43-183,938.96-72,860.06

Finding the Fourth Proportional to 133,289.43, 183,938.96 and 72,860.06

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Solution

The fourth proportional to 133,289.43, 183,938.96 and 72,860.06 is: 100,546.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,289.43 : 183,938.96 = 72,860.06 : x
  2. Step 2: Convert to fraction form
    133,289.43/183,938.96 = 72,860.06/x
  3. Step 3: Cross multiply
    133,289.43x = 183,938.96 × 72,860.06
  4. Step 4: Simplify right side
    133,289.43x = 13,401,802,377.94
  5. Step 5: Solve for x
    x = 13,401,802,377.94/133,289.43
  6. Step 6: Final answer
    x = 100,546.63

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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.