Home / 147,819.76-203,991.47-84,157.56

Finding the Fourth Proportional to 147,819.76, 203,991.47 and 84,157.56

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Solution

The fourth proportional to 147,819.76, 203,991.47 and 84,157.56 is: 116,137.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,819.76 : 203,991.47 = 84,157.56 : x
  2. Step 2: Convert to fraction form
    147,819.76/203,991.47 = 84,157.56/x
  3. Step 3: Cross multiply
    147,819.76x = 203,991.47 × 84,157.56
  4. Step 4: Simplify right side
    147,819.76x = 17,167,424,376.01
  5. Step 5: Solve for x
    x = 17,167,424,376.01/147,819.76
  6. Step 6: Final answer
    x = 116,137.55

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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.